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70965605 = 5119311897
BaseRepresentation
bin1000011101011…
…01100101100101
311221112102111202
410032231211211
5121131344410
611013012245
71521124544
oct416554545
9157472452
1070965605
1137070567
121b924085
13119191a9
1495d415b
15636bca5
hex43ad965

70965605 has 8 divisors (see below), whose sum is σ = 85237272. Its totient is φ = 56720128.

The previous prime is 70965577. The next prime is 70965607. The reversal of 70965605 is 50656907.

It can be written as a sum of positive squares in 4 ways, for example, as 28376929 + 42588676 = 5327^2 + 6526^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70965605 - 218 = 70703461 is a prime.

It is a super-2 number, since 2×709656052 = 10072234186032050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70965607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17 + ... + 11913.

It is an arithmetic number, because the mean of its divisors is an integer number (10654659).

Almost surely, 270965605 is an apocalyptic number.

It is an amenable number.

70965605 is a deficient number, since it is larger than the sum of its proper divisors (14271667).

70965605 is a wasteful number, since it uses less digits than its factorization.

70965605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13095.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 70965605 is about 8424.1085581799. The cubic root of 70965605 is about 414.0148986836.

The spelling of 70965605 in words is "seventy million, nine hundred sixty-five thousand, six hundred five".

Divisors: 1 5 1193 5965 11897 59485 14193121 70965605