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70418725 = 5213389557
BaseRepresentation
bin1000011001010…
…00000100100101
311220111122022221
410030220010211
5121011344400
610553152341
71513356256
oct414500445
9156448287
1070418725
11368276a3
121b6bb6b1
13117872b0
1494d0b2d
1562aec1a
hex4328125

70418725 has 24 divisors (see below), whose sum is σ = 94447080. Its totient is φ = 51774720.

The previous prime is 70418713. The next prime is 70418753. The reversal of 70418725 is 52781407.

It is a happy number.

70418725 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 12 ways, for example, as 56565441 + 13853284 = 7521^2 + 3722^2 .

It is not a de Polignac number, because 70418725 - 27 = 70418597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126147 + ... + 126703.

It is an arithmetic number, because the mean of its divisors is an integer number (3935295).

Almost surely, 270418725 is an apocalyptic number.

It is an amenable number.

70418725 is a deficient number, since it is larger than the sum of its proper divisors (24028355).

70418725 is a wasteful number, since it uses less digits than its factorization.

70418725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 70418725 is about 8391.5865603591. The cubic root of 70418725 is about 412.9486517349.

The spelling of 70418725 in words is "seventy million, four hundred eighteen thousand, seven hundred twenty-five".

Divisors: 1 5 13 25 65 325 389 557 1945 2785 5057 7241 9725 13925 25285 36205 126425 181025 216673 1083365 2816749 5416825 14083745 70418725