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16104004140 = 2235738342867
BaseRepresentation
bin11101111111101111…
…11001101000101100
31112120022112011122210
432333313321220230
5230440111113030
611221552410420
71110033530250
oct167767715054
945508464583
1016104004140
116914321734
123155246a10
13169849c443
14acaac6260
15643bdbbb0
hex3bfdf9a2c

16104004140 has 48 divisors (see below), whose sum is σ = 51532814592. Its totient is φ = 3680915136.

The previous prime is 16104004121. The next prime is 16104004141. The reversal of 16104004140 is 4140040161.

It is a super-2 number, since 2×161040041402 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (16104004141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19171014 + ... + 19171853.

It is an arithmetic number, because the mean of its divisors is an integer number (1073600304).

Almost surely, 216104004140 is an apocalyptic number.

16104004140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16104004140 is an abundant number, since it is smaller than the sum of its proper divisors (35428810452).

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

16104004140 is a wasteful number, since it uses less digits than its factorization.

16104004140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38342886 (or 38342884 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The spelling of 16104004140 in words is "sixteen billion, one hundred four million, four thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 38342867 76685734 115028601 153371468 191714335 230057202 268400069 383428670 460114404 536800138 575143005 766857340 805200207 1073600276 1150286010 1342000345 1610400414 2300572020 2684000690 3220800828 4026001035 5368001380 8052002070 16104004140