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70344478 = 2157224027
BaseRepresentation
bin1000011000101…
…01111100011110
311220100212111001
410030111330132
5121002010403
610551420514
71512626641
oct414257436
9156325431
1070344478
1136786936
121b68473a
131175c569
1494b1a58
156297c1d
hex4315f1e

70344478 has 8 divisors (see below), whose sum is σ = 106189272. Its totient is φ = 34948056.

The previous prime is 70344433. The next prime is 70344493. The reversal of 70344478 is 87444307.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111700 + ... + 112327.

It is an arithmetic number, because the mean of its divisors is an integer number (13273659).

Almost surely, 270344478 is an apocalyptic number.

70344478 is a deficient number, since it is larger than the sum of its proper divisors (35844794).

70344478 is a wasteful number, since it uses less digits than its factorization.

70344478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224186.

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 70344478 is about 8387.1614983855. The cubic root of 70344478 is about 412.8034679052.

The spelling of 70344478 in words is "seventy million, three hundred forty-four thousand, four hundred seventy-eight".

Divisors: 1 2 157 314 224027 448054 35172239 70344478