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13090950720 = 263254545469
BaseRepresentation
bin11000011000100100…
…00000111001000000
31020210022221012101200
430030102000321000
5203302240410340
610003000301200
7642256150041
oct141422007100
936708835350
1013090950720
115608556041
122654171800
1313081975b3
148c28828c8
1551941a330
hex30c480e40

13090950720 has 84 divisors (see below), whose sum is σ = 45027425820. Its totient is φ = 3490919424.

The previous prime is 13090950707. The next prime is 13090950731. The reversal of 13090950720 is 2705909031.

It can be written as a sum of positive squares in 2 ways, for example, as 1617970176 + 11472980544 = 40224^2 + 107112^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2269855 + ... + 2275614.

Almost surely, 213090950720 is an apocalyptic number.

13090950720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13090950720 is an abundant number, since it is smaller than the sum of its proper divisors (31936475100).

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

13090950720 is a wasteful number, since it uses less digits than its factorization.

13090950720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545492 (or 4545479 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The spelling of 13090950720 in words is "thirteen billion, ninety million, nine hundred fifty thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 240 288 320 360 480 576 720 960 1440 2880 4545469 9090938 13636407 18181876 22727345 27272814 36363752 40909221 45454690 54545628 68182035 72727504 81818442 90909380 109091256 136364070 145455008 163636884 181818760 204546105 218182512 272728140 290910016 327273768 363637520 409092210 436365024 545456280 654547536 727275040 818184420 872730048 1090912560 1309095072 1454550080 1636368840 2181825120 2618190144 3272737680 4363650240 6545475360 13090950720