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30925429290 = 2335724354361
BaseRepresentation
bin11100110011010011…
…001001101000101010
32221211020122120201000
4130303103021220222
51001313402214130
622112411135430
72143234545300
oct346323115052
987736576630
1030925429290
111212a664828
125bb0a44576
132bbb0231b2
1416d5304270
15c0eeca260
hex7334c9a2a

30925429290 has 192 divisors, whose sum is σ = 98164725120. Its totient is φ = 6904154880.

The previous prime is 30925429289. The next prime is 30925429319. The reversal of 30925429290 is 9292452903.

30925429290 is a `hidden beast` number, since 309 + 2 + 54 + 2 + 9 + 290 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 95 ways as a sum of consecutive naturals, for example, 541710 + ... + 596070.

It is an arithmetic number, because the mean of its divisors is an integer number (511274610).

Almost surely, 230925429290 is an apocalyptic number.

30925429290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30925429290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49082362560).

30925429290 is an abundant number, since it is smaller than the sum of its proper divisors (67239295830).

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

30925429290 is a wasteful number, since it uses less digits than its factorization.

30925429290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54434 (or 54421 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 30925429290 in words is "thirty billion, nine hundred twenty-five million, four hundred twenty-nine thousand, two hundred ninety".