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70297253 = 1310635087
BaseRepresentation
bin1000011000010…
…10011010100101
311220021110200222
410030022122211
5120444003003
610550414125
71512342155
oct414123245
9156243628
1070297253
1136754404
121b661345
1311743c10
14949c765
156288c38
hex430a6a5

70297253 has 8 divisors (see below), whose sum is σ = 75790848. Its totient is φ = 64815984.

The previous prime is 70297237. The next prime is 70297259. The reversal of 70297253 is 35279207.

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 70297253 - 24 = 70297237 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 (70297259) 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 7 ways as a sum of consecutive naturals, for example, 11276 + ... + 16362.

It is an arithmetic number, because the mean of its divisors is an integer number (9473856).

Almost surely, 270297253 is an apocalyptic number.

It is an amenable number.

70297253 is a deficient number, since it is larger than the sum of its proper divisors (5493595).

70297253 is a wasteful number, since it uses less digits than its factorization.

70297253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6163.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 70297253 is about 8384.3457109067. The cubic root of 70297253 is about 412.7110701864.

The spelling of 70297253 in words is "seventy million, two hundred ninety-seven thousand, two hundred fifty-three".

Divisors: 1 13 1063 5087 13819 66131 5407481 70297253