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161108000 = 255340277
BaseRepresentation
bin10011001101001…
…01000000100000
3102020011010121222
421212211000200
5312220424000
623553034212
73664252424
oct1146450040
9366133558
10161108000
1182a39909
1245b55968
13274baba1
141757ab84
15e225a85
hex99a5020

161108000 has 48 divisors (see below), whose sum is σ = 395852184. Its totient is φ = 64441600.

The previous prime is 161107993. The next prime is 161108041. The reversal of 161108000 is 801161.

It is a happy number.

161108000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 88585744 + 72522256 = 9412^2 + 8516^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 161108000.

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, 16139 + ... + 24138.

Almost surely, 2161108000 is an apocalyptic number.

161108000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161108000 is an abundant number, since it is smaller than the sum of its proper divisors (234744184).

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

161108000 is an equidigital number, since it uses as much as digits as its factorization.

161108000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40302 (or 40284 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 161108000 is about 12692.8326231775. The cubic root of 161108000 is about 544.1337978277.

Adding to 161108000 its reverse (801161), we get a palindrome (161909161).

The spelling of 161108000 in words is "one hundred sixty-one million, one hundred eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 4000 40277 80554 161108 201385 322216 402770 644432 805540 1006925 1288864 1611080 2013850 3222160 4027700 5034625 6444320 8055400 10069250 16110800 20138500 32221600 40277000 80554000 161108000