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161080495 = 5311039229
BaseRepresentation
bin10011001100111…
…10010010101111
3102020002201220021
421212132102233
5312214033440
623552303011
73664106302
oct1146362257
9366081807
10161080495
1182a20184
1245b41a67
13274ab504
1417570b39
15e21c84a
hex999e4af

161080495 has 8 divisors (see below), whose sum is σ = 199532160. Its totient is φ = 124707360.

The previous prime is 161080481. The next prime is 161080511. The reversal of 161080495 is 594080161.

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

It is not a de Polignac number, because 161080495 - 29 = 161079983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161080495.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519460 + ... + 519769.

It is an arithmetic number, because the mean of its divisors is an integer number (24941520).

Almost surely, 2161080495 is an apocalyptic number.

161080495 is a deficient number, since it is larger than the sum of its proper divisors (38451665).

161080495 is a wasteful number, since it uses less digits than its factorization.

161080495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039265.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 161080495 is about 12691.7490914373. The cubic root of 161080495 is about 544.1028305016.

It can be divided in two parts, 1610 and 80495, that multiplied together give a triangular number (129596950 = T16099).

The spelling of 161080495 in words is "one hundred sixty-one million, eighty thousand, four hundred ninety-five".

Divisors: 1 5 31 155 1039229 5196145 32216099 161080495