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70132287 = 3191230391
BaseRepresentation
bin1000010111000…
…10001000111111
311212222002102010
410023202020333
5120423213122
610543102303
71511054211
oct413421077
9155862363
1070132287
1136651475
121b5a1993
13116b6ac4
1494585b1
156254e0c
hex42e223f

70132287 has 8 divisors (see below), whose sum is σ = 98431360. Its totient is φ = 44294040.

The previous prime is 70132277. The next prime is 70132289. The reversal of 70132287 is 78223107.

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

It is not a de Polignac number, because 70132287 - 210 = 70131263 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 (70132289) 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, 615139 + ... + 615252.

It is an arithmetic number, because the mean of its divisors is an integer number (12303920).

Almost surely, 270132287 is an apocalyptic number.

70132287 is a deficient number, since it is larger than the sum of its proper divisors (28299073).

70132287 is a wasteful number, since it uses less digits than its factorization.

70132287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230413.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 70132287 is about 8374.5021941606. The cubic root of 70132287 is about 412.3879820718.

The spelling of 70132287 in words is "seventy million, one hundred thirty-two thousand, two hundred eighty-seven".

Divisors: 1 3 19 57 1230391 3691173 23377429 70132287