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70174820 = 2253508741
BaseRepresentation
bin1000010111011…
…00100001100100
311220001020202102
410023230201210
5120431043240
610544031232
71511322212
oct413544144
9156036672
1070174820
1136680421
121b602518
1311700281
149469cb2
156262815
hex42ec864

70174820 has 12 divisors (see below), whose sum is σ = 147367164. Its totient is φ = 28069920.

The previous prime is 70174813. The next prime is 70174823. The reversal of 70174820 is 2847107.

It can be written as a sum of positive squares in 2 ways, for example, as 53348416 + 16826404 = 7304^2 + 4102^2 .

It is not an unprimeable number, because it can be changed into a prime (70174823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1754351 + ... + 1754390.

It is an arithmetic number, because the mean of its divisors is an integer number (12280597).

Almost surely, 270174820 is an apocalyptic number.

It is an amenable number.

70174820 is an abundant number, since it is smaller than the sum of its proper divisors (77192344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70174820 is a wasteful number, since it uses less digits than its factorization.

70174820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508750 (or 3508748 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 70174820 is about 8377.0412437805. The cubic root of 70174820 is about 412.4713319532.

The spelling of 70174820 in words is "seventy million, one hundred seventy-four thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 3508741 7017482 14034964 17543705 35087410 70174820