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30661925703 = 310220641901
BaseRepresentation
bin11100100011100101…
…111101101101000111
32221010212211012201220
4130203211331231013
51000243423110303
622030315251423
72133555032253
oct344345755507
987125735656
1030661925703
1112004948672
125b38749b73
132b78563306
1416ac311263
15be6cca053
hex72397db47

30661925703 has 4 divisors (see below), whose sum is σ = 40882567608. Its totient is φ = 20441283800.

The previous prime is 30661925683. The next prime is 30661925717. The reversal of 30661925703 is 30752916603.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30661925703 - 222 = 30657731399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30661925743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5110320948 + ... + 5110320953.

It is an arithmetic number, because the mean of its divisors is an integer number (10220641902).

Almost surely, 230661925703 is an apocalyptic number.

30661925703 is a deficient number, since it is larger than the sum of its proper divisors (10220641905).

30661925703 is a wasteful number, since it uses less digits than its factorization.

30661925703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220641904.

The product of its (nonzero) digits is 204120, while the sum is 42.

The spelling of 30661925703 in words is "thirty billion, six hundred sixty-one million, nine hundred twenty-five thousand, seven hundred three".

Divisors: 1 3 10220641901 30661925703