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161052192 = 2533731859
BaseRepresentation
bin10011001100101…
…11011000100000
3102020001022002000
421212113120200
5312212132232
623551524000
73663630630
oct1146273040
9366038060
10161052192
1182a00994
1245b29600
132749b672
14175646c0
15e21427c
hex9997620

161052192 has 192 divisors, whose sum is σ = 554803200. Its totient is φ = 44478720.

The previous prime is 161052191. The next prime is 161052239. The reversal of 161052192 is 291250161.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (161052191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187059 + ... + 187917.

It is an arithmetic number, because the mean of its divisors is an integer number (2889600).

Almost surely, 2161052192 is an apocalyptic number.

161052192 is a gapful number since it is divisible by the number (12) 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 161052192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277401600).

161052192 is an abundant number, since it is smaller than the sum of its proper divisors (393751008).

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

161052192 is a wasteful number, since it uses less digits than its factorization.

161052192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 161052192 is about 12690.6340267143. The cubic root of 161052192 is about 544.0709610431.

The spelling of 161052192 in words is "one hundred sixty-one million, fifty-two thousand, one hundred ninety-two".