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70438612 = 22791012207
BaseRepresentation
bin1000011001011…
…00111011010100
311220112122121111
410030230323110
5121013013422
610553424404
71513501246
oct414547324
9156478544
1070438612
1136840632
121b70b104
131179336a
1494d8096
1562b5a77
hex432ced4

70438612 has 24 divisors (see below), whose sum is σ = 126120960. Its totient is φ = 34413600.

The previous prime is 70438609. The next prime is 70438661. The reversal of 70438612 is 21683407.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30813 + ... + 33019.

It is an arithmetic number, because the mean of its divisors is an integer number (5255040).

Almost surely, 270438612 is an apocalyptic number.

It is an amenable number.

70438612 is a deficient number, since it is larger than the sum of its proper divisors (55682348).

70438612 is a wasteful number, since it uses less digits than its factorization.

70438612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391 (or 2389 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 70438612 is about 8392.7714135439. The cubic root of 70438612 is about 412.9875217792.

The spelling of 70438612 in words is "seventy million, four hundred thirty-eight thousand, six hundred twelve".

Divisors: 1 2 4 79 101 158 202 316 404 2207 4414 7979 8828 15958 31916 174353 222907 348706 445814 697412 891628 17609653 35219306 70438612