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16138692 = 2232676691
BaseRepresentation
bin111101100100…
…000111000100
31010100221010100
4331210013010
513112414232
61333524100
7254114403
oct75440704
933327110
1016138692
119123269
1254a3630
133460a2b
14220163a
15163bc7c
hexf641c4

16138692 has 36 divisors (see below), whose sum is σ = 41410096. Its totient is φ = 5298480.

The previous prime is 16138687. The next prime is 16138711. The reversal of 16138692 is 29683161.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 934 + ... + 5757.

Almost surely, 216138692 is an apocalyptic number.

16138692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16138692 is an abundant number, since it is smaller than the sum of its proper divisors (25271404).

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

16138692 is a wasteful number, since it uses less digits than its factorization.

16138692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6768 (or 6763 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 16138692 is about 4017.2990926741. The cubic root of 16138692 is about 252.7102036801.

The spelling of 16138692 in words is "sixteen million, one hundred thirty-eight thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 67 134 201 268 402 603 804 1206 2412 6691 13382 20073 26764 40146 60219 80292 120438 240876 448297 896594 1344891 1793188 2689782 4034673 5379564 8069346 16138692