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70031012125 = 53560248097
BaseRepresentation
bin100000100111000101…
…1000111000100011101
320200202120201000111211
41001032023013010131
52121410414342000
652101035344421
75026301532004
oct1011613070435
9220676630454
1070031012125
1127777753a28
12116a52b2111
1367b09b5219
143564ba9c3b
151c4d1d97ba
hex104e2c711d

70031012125 has 8 divisors (see below), whose sum is σ = 87398703288. Its totient is φ = 56024809600.

The previous prime is 70031012071. The next prime is 70031012131. The reversal of 70031012125 is 52121013007.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10038837636 + 59992174489 = 100194^2 + 244933^2 .

It is not a de Polignac number, because 70031012125 - 215 = 70030979357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70031012096 and 70031012105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280123924 + ... + 280124173.

It is an arithmetic number, because the mean of its divisors is an integer number (10924837911).

Almost surely, 270031012125 is an apocalyptic number.

It is an amenable number.

70031012125 is a deficient number, since it is larger than the sum of its proper divisors (17367691163).

70031012125 is an equidigital number, since it uses as much as digits as its factorization.

70031012125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560248112 (or 560248102 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The spelling of 70031012125 in words is "seventy billion, thirty-one million, twelve thousand, one hundred twenty-five".

Divisors: 1 5 25 125 560248097 2801240485 14006202425 70031012125