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70392397 = 1923792039
BaseRepresentation
bin1000011001000…
…01101001001101
311220110022012211
410030201221031
5121010024042
610552430421
71513216435
oct414415115
9156408184
1070392397
1136809939
121b6a8411
131177830a
1494c52c5
1562a7017
hex4321a4d

70392397 has 16 divisors (see below), whose sum is σ = 78336000. Its totient is φ = 62949744.

The previous prime is 70392347. The next prime is 70392437. The reversal of 70392397 is 79329307.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70392397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70392307) 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 15 ways as a sum of consecutive naturals, for example, 33504 + ... + 35542.

It is an arithmetic number, because the mean of its divisors is an integer number (4896000).

Almost surely, 270392397 is an apocalyptic number.

It is an amenable number.

70392397 is a deficient number, since it is larger than the sum of its proper divisors (7943603).

70392397 is a wasteful number, since it uses less digits than its factorization.

70392397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160.

The product of its (nonzero) digits is 71442, while the sum is 40.

The square root of 70392397 is about 8390.0176996238. The cubic root of 70392397 is about 412.8971812048.

The spelling of 70392397 in words is "seventy million, three hundred ninety-two thousand, three hundred ninety-seven".

Divisors: 1 19 23 79 437 1501 1817 2039 34523 38741 46897 161081 891043 3060539 3704863 70392397