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70355263 = 1116738299
BaseRepresentation
bin1000011000110…
…00100100111111
311220101102021111
410030120210333
5121002332023
610551542451
71513003246
oct414304477
9156342244
1070355263
1136793a50
121b68aa27
1311764444
1494b595d
15629b00d
hex431893f

70355263 has 8 divisors (see below), whose sum is σ = 77212800. Its totient is φ = 63574680.

The previous prime is 70355251. The next prime is 70355273. The reversal of 70355263 is 36255307.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70355263 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 (70355203) 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, 17313 + ... + 20986.

It is an arithmetic number, because the mean of its divisors is an integer number (9651600).

Almost surely, 270355263 is an apocalyptic number.

70355263 is a deficient number, since it is larger than the sum of its proper divisors (6857537).

70355263 is a wasteful number, since it uses less digits than its factorization.

70355263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38477.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 70355263 is about 8387.8044207051. The cubic root of 70355263 is about 412.8245634151.

The spelling of 70355263 in words is "seventy million, three hundred fifty-five thousand, two hundred sixty-three".

Divisors: 1 11 167 1837 38299 421289 6395933 70355263