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149190808 = 231337137283
BaseRepresentation
bin10001110010001…
…11100010011000
3101101201200022111
420321013202120
5301143101213
622445402104
73461046424
oct1071074230
9341650274
10149190808
117723a298
1241b69334
1324ba77b0
1415b57b84
15d16ea3d
hex8e47898

149190808 has 64 divisors (see below), whose sum is σ = 312752160. Its totient is φ = 66272256.

The previous prime is 149190799. The next prime is 149190823. The reversal of 149190808 is 808091941.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527035 + ... + 527317.

Almost surely, 2149190808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149190808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156376080).

149190808 is an abundant number, since it is smaller than the sum of its proper divisors (163561352).

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

149190808 is a wasteful number, since it uses less digits than its factorization.

149190808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 149190808 is about 12214.3689153390. The cubic root of 149190808 is about 530.3721226685.

The spelling of 149190808 in words is "one hundred forty-nine million, one hundred ninety thousand, eight hundred eight".

Divisors: 1 2 4 8 13 26 37 52 74 104 137 148 274 283 296 481 548 566 962 1096 1132 1781 1924 2264 3562 3679 3848 5069 7124 7358 10138 10471 14248 14716 20276 20942 29432 38771 40552 41884 65897 77542 83768 131794 136123 155084 263588 272246 310168 504023 527176 544492 1008046 1088984 1434527 2016092 2869054 4032184 5738108 11476216 18648851 37297702 74595404 149190808