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29145984 = 273721549
BaseRepresentation
bin110111100101…
…1101110000000
32000211202202220
41233023232000
524430132414
62520411040
7502510500
oct157135600
960752686
1029145984
11154a789a
129916a80
13606635a
143c29a00
15285aca9
hex1bcbb80

29145984 has 96 divisors (see below), whose sum is σ = 90117000. Its totient is φ = 8322048.

The previous prime is 29145979. The next prime is 29146049. The reversal of 29145984 is 48954192.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18042 + ... + 19590.

Almost surely, 229145984 is an apocalyptic number.

29145984 is a gapful number since it is divisible by the number (24) 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 29145984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45058500).

29145984 is an abundant number, since it is smaller than the sum of its proper divisors (60971016).

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

29145984 is a wasteful number, since it uses less digits than its factorization.

29145984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580 (or 1561 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 29145984 is about 5398.7020662378. The cubic root of 29145984 is about 307.7463476366.

The spelling of 29145984 in words is "twenty-nine million, one hundred forty-five thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 128 147 168 192 196 224 294 336 384 392 448 588 672 784 896 1176 1344 1549 1568 2352 2688 3098 3136 4647 4704 6196 6272 9294 9408 10843 12392 18588 18816 21686 24784 32529 37176 43372 49568 65058 74352 75901 86744 99136 130116 148704 151802 173488 198272 227703 260232 297408 303604 346976 455406 520464 594816 607208 693952 910812 1040928 1214416 1387904 1821624 2081856 2428832 3643248 4163712 4857664 7286496 9715328 14572992 29145984