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161006312260 = 22515667513839
BaseRepresentation
bin1001010111110010111…
…0010101101101000100
3120101120210210002220101
42111330232111231010
510114220103443020
6201544300013444
714426613034123
oct2257456255504
9511523702811
10161006312260
1162311958492
1227254831284
131224b8a6c71
147b15425aba
1542c4eb900a
hex257cb95b44

161006312260 has 24 divisors (see below), whose sum is σ = 338135495040. Its totient is φ = 64398288864.

The previous prime is 161006312219. The next prime is 161006312263. The reversal of 161006312260 is 62213600161.

It is not an unprimeable number, because it can be changed into a prime (161006312263) 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, 56421 + ... + 570259.

It is an arithmetic number, because the mean of its divisors is an integer number (14088978960).

Almost surely, 2161006312260 is an apocalyptic number.

161006312260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161006312260 is an abundant number, since it is smaller than the sum of its proper divisors (177129182780).

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

161006312260 is a wasteful number, since it uses less digits than its factorization.

161006312260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529515 (or 529513 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 161006312260 in words is "one hundred sixty-one billion, six million, three hundred twelve thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 15667 31334 62668 78335 156670 313340 513839 1027678 2055356 2569195 5138390 10276780 8050315613 16100631226 32201262452 40251578065 80503156130 161006312260