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13970892 = 223132832
BaseRepresentation
bin110101010010…
…110111001100
3222021210110110
4311102313030
512034032032
61215240020
7226515315
oct65226714
928253413
1013970892
1179825a1
124819010
132b82100
141bd960c
15135e7cc
hexd52dcc

13970892 has 54 divisors (see below), whose sum is σ = 35729652. Its totient is φ = 4246944.

The previous prime is 13970881. The next prime is 13970897. The reversal of 13970892 is 29807931.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 13970892.

It is not an unprimeable number, because it can be changed into a prime (13970897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 168283 + ... + 168365.

Almost surely, 213970892 is an apocalyptic number.

13970892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13970892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17864826).

13970892 is an abundant number, since it is smaller than the sum of its proper divisors (21758760).

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

13970892 is a wasteful number, since it uses less digits than its factorization.

13970892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 13970892 is about 3737.7656427336. The cubic root of 13970892 is about 240.8470761851.

The spelling of 13970892 in words is "thirteen million, nine hundred seventy thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 83 156 166 169 249 332 338 498 507 676 996 1014 1079 2028 2158 3237 4316 6474 6889 12948 13778 14027 20667 27556 28054 41334 42081 56108 82668 84162 89557 168324 179114 268671 358228 537342 1074684 1164241 2328482 3492723 4656964 6985446 13970892