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70031797 = 1113746471
BaseRepresentation
bin1000010110010…
…01100110110101
311212202222120021
410023021212311
5120412004142
610541005141
71510155223
oct413114665
9155688507
1070031797
1136592a20
121b5537b1
1311680144
14942db13
156235267
hex42c99b5

70031797 has 8 divisors (see below), whose sum is σ = 76957632. Its totient is φ = 63199200.

The previous prime is 70031779. The next prime is 70031827. The reversal of 70031797 is 79713007.

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

It is a cyclic number.

It is not a de Polignac number, because 70031797 - 27 = 70031669 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 (70037797) by changing a digit.

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, 21729 + ... + 24742.

It is an arithmetic number, because the mean of its divisors is an integer number (9619704).

Almost surely, 270031797 is an apocalyptic number.

It is an amenable number.

70031797 is a deficient number, since it is larger than the sum of its proper divisors (6925835).

70031797 is a wasteful number, since it uses less digits than its factorization.

70031797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46619.

The product of its (nonzero) digits is 9261, while the sum is 34.

The square root of 70031797 is about 8368.5002838023. The cubic root of 70031797 is about 412.1909226817.

The spelling of 70031797 in words is "seventy million, thirty-one thousand, seven hundred ninety-seven".

Divisors: 1 11 137 1507 46471 511181 6366527 70031797