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161306060 = 22543118713
BaseRepresentation
bin10011001110101…
…01010111001100
3102020112012022112
421213111113030
5312243243220
624001203152
73666036026
oct1147252714
9366465275
10161306060
11830646a3
12460304b8
132755a096
14175cd016
15e2645c5
hex99d55cc

161306060 has 24 divisors (see below), whose sum is σ = 339546816. Its totient is φ = 64369280.

The previous prime is 161306027. The next prime is 161306063. The reversal of 161306060 is 60603161.

It is not an unprimeable number, because it can be changed into a prime (161306063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737 + ... + 17976.

It is an arithmetic number, because the mean of its divisors is an integer number (14147784).

Almost surely, 2161306060 is an apocalyptic number.

161306060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161306060 is an abundant number, since it is smaller than the sum of its proper divisors (178240756).

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

161306060 is a wasteful number, since it uses less digits than its factorization.

161306060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19153 (or 19151 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 161306060 is about 12700.6322677259. The cubic root of 161306060 is about 544.3566855942.

The spelling of 161306060 in words is "one hundred sixty-one million, three hundred six thousand, sixty".

Divisors: 1 2 4 5 10 20 431 862 1724 2155 4310 8620 18713 37426 74852 93565 187130 374260 8065303 16130606 32261212 40326515 80653030 161306060