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70345970 = 2514334909
BaseRepresentation
bin1000011000101…
…10010011110010
311220100221112022
410030112103302
5121002032340
610551431442
71512634202
oct414262362
9156327468
1070345970
1136787a72
121b685582
1311760146
1494b2402
1562983b5
hex43164f2

70345970 has 16 divisors (see below), whose sum is σ = 126736920. Its totient is φ = 28113024.

The previous prime is 70345969. The next prime is 70345987. The reversal of 70345970 is 7954307.

It can be written as a sum of positive squares in 4 ways, for example, as 70040161 + 305809 = 8369^2 + 553^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70345970.

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, 11876 + ... + 16784.

Almost surely, 270345970 is an apocalyptic number.

70345970 is a deficient number, since it is larger than the sum of its proper divisors (56390950).

70345970 is a wasteful number, since it uses less digits than its factorization.

70345970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6349.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 70345970 is about 8387.2504433813. The cubic root of 70345970 is about 412.8063863926.

The spelling of 70345970 in words is "seventy million, three hundred forty-five thousand, nine hundred seventy".

Divisors: 1 2 5 10 1433 2866 4909 7165 9818 14330 24545 49090 7034597 14069194 35172985 70345970