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13660752 = 2437109373
BaseRepresentation
bin110100000111…
…001001010000
3221201001000210
4310013021100
511444121002
61204444120
7224054160
oct64071120
927631023
1013660752
117790586
1246a9640
132aa3bb1
141b585a0
1512ec96c
hexd07250

13660752 has 80 divisors (see below), whose sum is σ = 40810880. Its totient is φ = 3856896.

The previous prime is 13660663. The next prime is 13660763. The reversal of 13660752 is 25706631.

It is a super-2 number, since 2×136607522 = 373232290411008, which contains 22 as substring.

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, 36438 + ... + 36810.

It is an arithmetic number, because the mean of its divisors is an integer number (510136).

Almost surely, 213660752 is an apocalyptic number.

13660752 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 13660752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20405440).

13660752 is an abundant number, since it is smaller than the sum of its proper divisors (27150128).

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

13660752 is a wasteful number, since it uses less digits than its factorization.

13660752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 13660752 is about 3696.0454542660. The cubic root of 13660752 is about 239.0515344366.

The spelling of 13660752 in words is "thirteen million, six hundred sixty thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 109 112 168 218 327 336 373 436 654 746 763 872 1119 1308 1492 1526 1744 2238 2289 2611 2616 2984 3052 4476 4578 5222 5232 5968 6104 7833 8952 9156 10444 12208 15666 17904 18312 20888 31332 36624 40657 41776 62664 81314 121971 125328 162628 243942 284599 325256 487884 569198 650512 853797 975768 1138396 1707594 1951536 2276792 3415188 4553584 6830376 13660752