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70031792 = 245238369
BaseRepresentation
bin1000010110010…
…01100110110000
311212202222120002
410023021212300
5120412004132
610541005132
71510155215
oct413114660
9155688502
1070031792
1136592a16
121b5537a8
131168013c
14942db0c
156235262
hex42c99b0

70031792 has 20 divisors (see below), whose sum is σ = 135962280. Its totient is φ = 34944768.

The previous prime is 70031779. The next prime is 70031827. The reversal of 70031792 is 29713007.

It is a happy number.

It is an unprimeable number.

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, 4184 + ... + 12552.

It is an arithmetic number, because the mean of its divisors is an integer number (6798114).

Almost surely, 270031792 is an apocalyptic number.

It is a pronic number, being equal to 8368×8369.

It is an amenable number.

70031792 is a deficient number, since it is larger than the sum of its proper divisors (65930488).

70031792 is a wasteful number, since it uses less digits than its factorization.

70031792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8900 (or 8894 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 70031792 is about 8368.4999850630. The cubic root of 70031792 is about 412.1909128720.

Adding to 70031792 its reverse (29713007), we get a palindrome (99744799).

The spelling of 70031792 in words is "seventy million, thirty-one thousand, seven hundred ninety-two".

Divisors: 1 2 4 8 16 523 1046 2092 4184 8368 8369 16738 33476 66952 133904 4376987 8753974 17507948 35015896 70031792