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16231313180 = 2253721934207
BaseRepresentation
bin11110001110111011…
…00010111100011100
31112220012002010211102
433013131202330130
5231220204010210
611242341212232
71113140612525
oct170735427434
945805063742
1016231313180
11697a175915
12318ba01078
1316b8985134
14add98584c
1564ee87ea5
hex3c7762f1c

16231313180 has 24 divisors (see below), whose sum is σ = 35006995968. Its totient is φ = 6317051328.

The previous prime is 16231313149. The next prime is 16231313201. The reversal of 16231313180 is 8131313261.

It is a congruent number.

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, 10966364 + ... + 10967843.

It is an arithmetic number, because the mean of its divisors is an integer number (1458624832).

Almost surely, 216231313180 is an apocalyptic number.

16231313180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16231313180 is an abundant number, since it is smaller than the sum of its proper divisors (18775682788).

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

16231313180 is a wasteful number, since it uses less digits than its factorization.

16231313180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21934253 (or 21934251 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 16231313180 in words is "sixteen billion, two hundred thirty-one million, three hundred thirteen thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 21934207 43868414 87736828 109671035 219342070 438684140 811565659 1623131318 3246262636 4057828295 8115656590 16231313180