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30799241928 = 23337133742349
BaseRepresentation
bin11100101011110001…
…110010001011001000
32221111110012121012000
4130223301302023020
51001034101220203
622052102351000
72140143144150
oct345361621310
987443177160
1030799241928
1112075407354
125b7672b460
132b9ab40c10
1416c2657760
15c03da14a3
hex72bc722c8

30799241928 has 256 divisors, whose sum is σ = 108144960000. Its totient is φ = 7903153152.

The previous prime is 30799241917. The next prime is 30799241939. The reversal of 30799241928 is 82914299703.

30799241928 is a `hidden beast` number, since 307 + 9 + 9 + 241 + 92 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (30799241917) and next prime (30799241939).

It is a Harshad number since it is a multiple of its sum of digits (54).

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 63 ways as a sum of consecutive naturals, for example, 706098 + ... + 748446.

It is an arithmetic number, because the mean of its divisors is an integer number (422441250).

Almost surely, 230799241928 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 30799241928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54072480000).

30799241928 is an abundant number, since it is smaller than the sum of its proper divisors (77345718072).

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

30799241928 is a wasteful number, since it uses less digits than its factorization.

30799241928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42421 (or 42411 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 30799241928 in words is "thirty billion, seven hundred ninety-nine million, two hundred forty-one thousand, nine hundred twenty-eight".