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13769952 = 253731661
BaseRepresentation
bin110100100001…
…110011100000
3221220120211020
4310201303200
512011114302
61211045440
7225020430
oct64416340
927816736
1013769952
117855629
124740880
132b11801
141b862c0
15131eebc
hexd21ce0

13769952 has 96 divisors (see below), whose sum is σ = 42706944. Its totient is φ = 3801600.

The previous prime is 13769941. The next prime is 13769981. The reversal of 13769952 is 25996731.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×137699522 = 379223156164608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20502 + ... + 21162.

It is an arithmetic number, because the mean of its divisors is an integer number (444864).

Almost surely, 213769952 is an apocalyptic number.

13769952 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 13769952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21353472).

13769952 is an abundant number, since it is smaller than the sum of its proper divisors (28936992).

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

13769952 is a wasteful number, since it uses less digits than its factorization.

13769952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 704 counting only the distinct ones).

The product of its digits is 102060, while the sum is 42.

The square root of 13769952 is about 3710.7885954336. The cubic root of 13769952 is about 239.6868137098.

The spelling of 13769952 in words is "thirteen million, seven hundred sixty-nine thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 31 32 42 48 56 62 84 93 96 112 124 168 186 217 224 248 336 372 434 496 651 661 672 744 868 992 1302 1322 1488 1736 1983 2604 2644 2976 3472 3966 4627 5208 5288 6944 7932 9254 10416 10576 13881 15864 18508 20491 20832 21152 27762 31728 37016 40982 55524 61473 63456 74032 81964 111048 122946 143437 148064 163928 222096 245892 286874 327856 430311 444192 491784 573748 655712 860622 983568 1147496 1721244 1967136 2294992 3442488 4589984 6884976 13769952