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23929212880 = 2452313005007
BaseRepresentation
bin10110010010010010…
…101100111111010000
32021202200000222000201
4112102102230333100
5343001334303010
614554250024544
71504662645016
oct262222547720
967680028021
1023929212880
11a16a4648a1
124779a18154
132344743481
1412300908b6
15950bac23a
hex5924acfd0

23929212880 has 40 divisors (see below), whose sum is σ = 58054355712. Its totient is φ = 9155524224.

The previous prime is 23929212833. The next prime is 23929212907. The reversal of 23929212880 is 8821292932.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 23929212880.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6500664 + ... + 6504343.

Almost surely, 223929212880 is an apocalyptic number.

23929212880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23929212880 is an abundant number, since it is smaller than the sum of its proper divisors (34125142832).

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

23929212880 is a wasteful number, since it uses less digits than its factorization.

23929212880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13005043 (or 13005037 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 23929212880 in words is "twenty-three billion, nine hundred twenty-nine million, two hundred twelve thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 1840 13005007 26010014 52020028 65025035 104040056 130050070 208080112 260100140 299115161 520200280 598230322 1040400560 1196460644 1495575805 2392921288 2991151610 4785842576 5982303220 11964606440 23929212880