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149141664 = 25327292551
BaseRepresentation
bin10001110001110…
…11100010100000
3101101122011220100
420320323202200
5301140013124
622444342400
73460453230
oct1070734240
9341564810
10149141664
1177206381
1241b44a00
1324b8b309
1415b43cc0
15d1601c9
hex8e3b8a0

149141664 has 144 divisors (see below), whose sum is σ = 501621120. Its totient is φ = 41126400.

The previous prime is 149141653. The next prime is 149141687. The reversal of 149141664 is 466141941.

149141664 is a `hidden beast` number, since 1 + 491 + 4 + 166 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (20736) is a multiple of the sum of its prime divisors (2592).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57189 + ... + 59739.

It is an arithmetic number, because the mean of its divisors is an integer number (3483480).

Almost surely, 2149141664 is an apocalyptic number.

149141664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149141664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250810560).

149141664 is an abundant number, since it is smaller than the sum of its proper divisors (352479456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149141664 is a wasteful number, since it uses less digits than its factorization.

149141664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603 (or 2592 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 149141664 is about 12212.3570206574. The cubic root of 149141664 is about 530.3138807648.

The spelling of 149141664 in words is "one hundred forty-nine million, one hundred forty-one thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 29 32 36 42 48 56 58 63 72 84 87 96 112 116 126 144 168 174 203 224 232 252 261 288 336 348 406 464 504 522 609 672 696 812 928 1008 1044 1218 1392 1624 1827 2016 2088 2436 2551 2784 3248 3654 4176 4872 5102 6496 7308 7653 8352 9744 10204 14616 15306 17857 19488 20408 22959 29232 30612 35714 40816 45918 53571 58464 61224 71428 73979 81632 91836 107142 122448 142856 147958 160713 183672 214284 221937 244896 285712 295916 321426 367344 428568 443874 517853 571424 591832 642852 665811 734688 857136 887748 1035706 1183664 1285704 1331622 1553559 1714272 1775496 2071412 2367328 2571408 2663244 3107118 3550992 4142824 4660677 5142816 5326488 6214236 7101984 8285648 9321354 10652976 12428472 16571296 18642708 21305952 24856944 37285416 49713888 74570832 149141664