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161108496 = 24321118809
BaseRepresentation
bin10011001101001…
…01001000010000
3102020011011022100
421212211020100
5312220432441
623553040400
73664254033
oct1146451020
9366134270
10161108496
1182a3a21a
1245b56100
13274bb193
141757b01a
15e225cb6
hex99a5210

161108496 has 30 divisors (see below), whose sum is σ = 450880430. Its totient is φ = 53702784.

The previous prime is 161108489. The next prime is 161108501. The reversal of 161108496 is 694801161.

It is a happy number.

161108496 is a `hidden beast` number, since 1 + 61 + 108 + 496 = 666.

It can be written as a sum of positive squares in only one way, i.e., 159668496 + 1440000 = 12636^2 + 1200^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 161108496.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559261 + ... + 559548.

Almost surely, 2161108496 is an apocalyptic number.

161108496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161108496 is an abundant number, since it is smaller than the sum of its proper divisors (289771934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161108496 is a wasteful number, since it uses less digits than its factorization.

161108496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118823 (or 1118814 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 161108496 is about 12692.8521617484. The cubic root of 161108496 is about 544.1343562317.

It can be divided in two parts, 161108 and 496, that added together give a square (161604 = 4022).

The spelling of 161108496 in words is "one hundred sixty-one million, one hundred eight thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 1118809 2237618 3356427 4475236 6712854 8950472 10069281 13425708 17900944 20138562 26851416 40277124 53702832 80554248 161108496