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70132643 = 7291731997
BaseRepresentation
bin1000010111000…
…10001110100011
311212222002220022
410023202032203
5120423221033
610543104055
71511055230
oct413421643
9155862808
1070132643
1136651769
121b5a202b
13116b7009
149458787
156255098
hex42e23a3

70132643 has 16 divisors (see below), whose sum is σ = 83436480. Its totient is φ = 57676416.

The previous prime is 70132637. The next prime is 70132669. The reversal of 70132643 is 34623107.

It is not a de Polignac number, because 70132643 - 210 = 70131619 is a prime.

It is a super-2 number, since 2×701326432 = 9837175228330898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70132603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34121 + ... + 36117.

It is an arithmetic number, because the mean of its divisors is an integer number (5214780).

Almost surely, 270132643 is an apocalyptic number.

70132643 is a deficient number, since it is larger than the sum of its proper divisors (13303837).

70132643 is a wasteful number, since it uses less digits than its factorization.

70132643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 70132643 is about 8374.5234491283. The cubic root of 70132643 is about 412.3886798478.

The spelling of 70132643 in words is "seventy million, one hundred thirty-two thousand, six hundred forty-three".

Divisors: 1 7 29 173 203 1211 1997 5017 13979 35119 57913 345481 405391 2418367 10018949 70132643