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13607990 = 25111719383
BaseRepresentation
bin110011111010…
…010000110110
3221121100122122
4303322100312
511440423430
61203355542
7223444304
oct63722066
927540578
1013607990
117754980
124682bb2
132a85b86
141b43274
1512dbee5
hexcfa436

13607990 has 64 divisors (see below), whose sum is σ = 29859840. Its totient is φ = 4400640.

The previous prime is 13607981. The next prime is 13608013. The reversal of 13607990 is 9970631.

It is a self number, because there is not a number n which added to its sum of digits gives 13607990.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 35339 + ... + 35721.

It is an arithmetic number, because the mean of its divisors is an integer number (466560).

Almost surely, 213607990 is an apocalyptic number.

13607990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13607990 is an abundant number, since it is smaller than the sum of its proper divisors (16251850).

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

13607990 is a wasteful number, since it uses less digits than its factorization.

13607990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 13607990 is about 3688.9009203284. The cubic root of 13607990 is about 238.7433739926.

The spelling of 13607990 in words is "thirteen million, six hundred seven thousand, nine hundred ninety".

Divisors: 1 2 5 10 11 17 19 22 34 38 55 85 95 110 170 187 190 209 323 374 383 418 646 766 935 1045 1615 1870 1915 2090 3230 3553 3830 4213 6511 7106 7277 8426 13022 14554 17765 21065 32555 35530 36385 42130 65110 71621 72770 80047 123709 143242 160094 247418 358105 400235 618545 716210 800470 1237090 1360799 2721598 6803995 13607990