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190979085 = 35111157449
BaseRepresentation
bin10110110001000…
…01110000001101
3111022100202001110
423120201300031
5342342312320
630541202233
74506203223
oct1330416015
9438322043
10190979085
1198891460
1253b60379
133074929b
141b514b13
1511b765e0
hexb621c0d

190979085 has 16 divisors (see below), whose sum is σ = 333345600. Its totient is φ = 92595840.

The previous prime is 190979077. The next prime is 190979167. The reversal of 190979085 is 580979091.

It is not a de Polignac number, because 190979085 - 23 = 190979077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578560 + ... + 578889.

It is an arithmetic number, because the mean of its divisors is an integer number (20834100).

Almost surely, 2190979085 is an apocalyptic number.

190979085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190979085 is a deficient number, since it is larger than the sum of its proper divisors (142366515).

190979085 is a wasteful number, since it uses less digits than its factorization.

190979085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157468.

The product of its (nonzero) digits is 204120, while the sum is 48.

The square root of 190979085 is about 13819.5182622261. The cubic root of 190979085 is about 575.8755005563.

It can be divided in two parts, 19097 and 9085, that added together give a palindrome (28182).

The spelling of 190979085 in words is "one hundred ninety million, nine hundred seventy-nine thousand, eighty-five".

Divisors: 1 3 5 11 15 33 55 165 1157449 3472347 5787245 12731939 17361735 38195817 63659695 190979085