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16142904 = 23321391613
BaseRepresentation
bin111101100101…
…001000111000
31010101010220100
4331211020320
513113033104
61333555400
7254132601
oct75451070
933333810
1016142904
119126448
1254a5b60
13346291b
142202da8
15163d139
hexf65238

16142904 has 48 divisors (see below), whose sum is σ = 44062200. Its totient is φ = 5338944.

The previous prime is 16142891. The next prime is 16142921. The reversal of 16142904 is 40924161.

16142904 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9202 + ... + 10814.

Almost surely, 216142904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16142904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22031100).

16142904 is an abundant number, since it is smaller than the sum of its proper divisors (27919296).

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

16142904 is a wasteful number, since it uses less digits than its factorization.

16142904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764 (or 1757 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 16142904 is about 4017.8232912860. The cubic root of 16142904 is about 252.7321865188.

The spelling of 16142904 in words is "sixteen million, one hundred forty-two thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 139 278 417 556 834 1112 1251 1613 1668 2502 3226 3336 4839 5004 6452 9678 10008 12904 14517 19356 29034 38712 58068 116136 224207 448414 672621 896828 1345242 1793656 2017863 2690484 4035726 5380968 8071452 16142904