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16145860 = 2251017993
BaseRepresentation
bin111101100101…
…110111000100
31010101021221211
4331211313010
513113131420
61334021204
7254144323
oct75456704
933337854
1016145860
119128695
1254a7804
133464083
1422040ba
15163de5a
hexf65dc4

16145860 has 24 divisors (see below), whose sum is σ = 34246296. Its totient is φ = 6393600.

The previous prime is 16145851. The next prime is 16145873. The reversal of 16145860 is 6854161.

It can be written as a sum of positive squares in 4 ways, for example, as 2143296 + 14002564 = 1464^2 + 3742^2 .

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, 1977 + ... + 6016.

It is an arithmetic number, because the mean of its divisors is an integer number (1426929).

Almost surely, 216145860 is an apocalyptic number.

16145860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16145860 is an abundant number, since it is smaller than the sum of its proper divisors (18100436).

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

16145860 is a wasteful number, since it uses less digits than its factorization.

16145860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8103 (or 8101 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 16145860 is about 4018.1911353245. The cubic root of 16145860 is about 252.7476118877.

The spelling of 16145860 in words is "sixteen million, one hundred forty-five thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 7993 15986 31972 39965 79930 159860 807293 1614586 3229172 4036465 8072930 16145860