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70986195 = 3257225353
BaseRepresentation
bin1000011101100…
…10100111010011
311221120110202100
410032302213103
5121133024240
611013251443
71521241560
oct416624723
9157513670
1070986195
1137084a85
121b933b83
1311925687
1495db867
156372e30
hex43b29d3

70986195 has 24 divisors (see below), whose sum is σ = 140620896. Its totient is φ = 32450688.

The previous prime is 70986079. The next prime is 70986199. The reversal of 70986195 is 59168907.

It is not a de Polignac number, because 70986195 - 210 = 70985171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 70986195.

It is not an unprimeable number, because it can be changed into a prime (70986199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112362 + ... + 112991.

It is an arithmetic number, because the mean of its divisors is an integer number (5859204).

Almost surely, 270986195 is an apocalyptic number.

70986195 is a deficient number, since it is larger than the sum of its proper divisors (69634701).

70986195 is a wasteful number, since it uses less digits than its factorization.

70986195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225371 (or 225368 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 70986195 is about 8425.3305573135. The cubic root of 70986195 is about 414.0549356492.

The spelling of 70986195 in words is "seventy million, nine hundred eighty-six thousand, one hundred ninety-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 225353 676059 1126765 1577471 2028177 3380295 4732413 7887355 10140885 14197239 23662065 70986195