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161052160 = 295531187
BaseRepresentation
bin10011001100101…
…11011000000000
3102020001022000211
421212113120000
5312212132120
623551523504
73663630553
oct1146273000
9366038024
10161052160
1182a00965
1245b29594
132749b649
141756469a
15e21425a
hex9997600

161052160 has 80 divisors (see below), whose sum is σ = 393764976. Its totient is φ = 63152128.

The previous prime is 161052149. The next prime is 161052179. The reversal of 161052160 is 61250161.

It is a tau number, because it is divible by the number of its divisors (80).

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135087 + ... + 136273.

Almost surely, 2161052160 is an apocalyptic number.

161052160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161052160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196882488).

161052160 is an abundant number, since it is smaller than the sum of its proper divisors (232712816).

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

161052160 is an equidigital number, since it uses as much as digits as its factorization.

161052160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 161052160 is about 12690.6327659420. The cubic root of 161052160 is about 544.0709250087.

The spelling of 161052160 in words is "one hundred sixty-one million, fifty-two thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 53 64 80 106 128 160 212 256 265 320 424 512 530 640 848 1060 1187 1280 1696 2120 2374 2560 3392 4240 4748 5935 6784 8480 9496 11870 13568 16960 18992 23740 27136 33920 37984 47480 62911 67840 75968 94960 125822 135680 151936 189920 251644 303872 314555 379840 503288 607744 629110 759680 1006576 1258220 1519360 2013152 2516440 3038720 4026304 5032880 8052608 10065760 16105216 20131520 32210432 40263040 80526080 161052160