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5129881008 = 243717238861
BaseRepresentation
bin1001100011100001…
…11100010110110000
3111020111202221210220
410301300330112300
541001222143013
62205011053040
7241060161210
oct46160742660
914214687726
105129881008
1121a275858a
12bb1ba1180
13639a35165
14369430240
1520055eb23
hex131c3c5b0

5129881008 has 80 divisors (see below), whose sum is σ = 15155863296. Its totient is φ = 1464664320.

The previous prime is 5129880997. The next prime is 5129881157. The reversal of 5129881008 is 8001889215.

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

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, 574498 + ... + 583358.

Almost surely, 25129881008 is an apocalyptic number.

5129881008 is the 41352-nd octagonal number.

It is an amenable number.

5129881008 is an abundant number, since it is smaller than the sum of its proper divisors (10025982288).

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

5129881008 is a wasteful number, since it uses less digits than its factorization.

5129881008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10602 (or 10596 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 42.

The square root of 5129881008 is about 71623.1876419920. The cubic root of 5129881008 is about 1724.6557888287.

The spelling of 5129881008 in words is "five billion, one hundred twenty-nine million, eight hundred eighty-one thousand, eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 1723 3446 5169 6892 8861 10338 12061 13784 17722 20676 24122 26583 27568 35444 36183 41352 48244 53166 62027 70888 72366 82704 96488 106332 124054 141776 144732 186081 192976 212664 248108 289464 372162 425328 496216 578928 744324 992432 1488648 2977296 15267503 30535006 45802509 61070012 91605018 106872521 122140024 183210036 213745042 244280048 320617563 366420072 427490084 641235126 732840144 854980168 1282470252 1709960336 2564940504 5129881008