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83970495 = 32571272099
BaseRepresentation
bin1010000000101…
…00100110111111
312212000010212100
411000110212333
5132444023440
612155440143
72036510640
oct500244677
9185003770
1083970495
1143443304
1224156053
13145206ab
14b21b6c7
15758a230
hex50149bf

83970495 has 48 divisors (see below), whose sum is σ = 167731200. Its totient is φ = 38066112.

The previous prime is 83970487. The next prime is 83970527. The reversal of 83970495 is 59407938.

It is not a de Polignac number, because 83970495 - 23 = 83970487 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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 83970495.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 38956 + ... + 41054.

It is an arithmetic number, because the mean of its divisors is an integer number (3494400).

Almost surely, 283970495 is an apocalyptic number.

83970495 is a deficient number, since it is larger than the sum of its proper divisors (83760705).

83970495 is a wasteful number, since it uses less digits than its factorization.

83970495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244 (or 2241 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 83970495 is about 9163.5416188284. The cubic root of 83970495 is about 437.9006311140.

The spelling of 83970495 in words is "eighty-three million, nine hundred seventy thousand, four hundred ninety-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 127 315 381 635 889 1143 1905 2099 2667 4445 5715 6297 8001 10495 13335 14693 18891 31485 40005 44079 73465 94455 132237 220395 266573 661185 799719 1332865 1866011 2399157 3998595 5598033 9330055 11995785 16794099 27990165 83970495