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29724560320 = 2657213145823
BaseRepresentation
bin11011101011101110…
…001100101111000000
32211201120000010011111
4123223232030233000
5441333441412240
621353312253104
72101413410500
oct335356145700
984646003144
1029724560320
1111673815134
125916841194
132a592b6340
14161da29a00
15b8e86c1ea
hex6ebb8cbc0

29724560320 has 168 divisors, whose sum is σ = 88672074624. Its totient is φ = 9407268864.

The previous prime is 29724560311. The next prime is 29724560353. The reversal of 29724560320 is 2306542792.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130929 + ... + 276751.

It is an arithmetic number, because the mean of its divisors is an integer number (527809968).

Almost surely, 229724560320 is an apocalyptic number.

29724560320 is a gapful number since it is divisible by the number (20) 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 29724560320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44336037312).

29724560320 is an abundant number, since it is smaller than the sum of its proper divisors (58947514304).

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

29724560320 is a wasteful number, since it uses less digits than its factorization.

29724560320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145867 (or 145850 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 29724560320 in words is "twenty-nine billion, seven hundred twenty-four million, five hundred sixty thousand, three hundred twenty".