Search a number
-
+
12652142720 = 27572824139
BaseRepresentation
bin10111100100010000…
…00110000010000000
31012122202020102222112
423302020012002000
5201402422031340
65451243154452
7625350303320
oct136210060200
935582212875
1012652142720
1154028940a8
122551215a28
1312682b8ba9
14880499280
154e0b3d065
hex2f2206080

12652142720 has 64 divisors (see below), whose sum is σ = 34567473600. Its totient is φ = 4337875968.

The previous prime is 12652142719. The next prime is 12652142743. The reversal of 12652142720 is 2724125621.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1407590 + ... + 1416549.

It is an arithmetic number, because the mean of its divisors is an integer number (540116775).

Almost surely, 212652142720 is an apocalyptic number.

12652142720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12652142720 is an abundant number, since it is smaller than the sum of its proper divisors (21915330880).

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

12652142720 is an equidigital number, since it uses as much as digits as its factorization.

12652142720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824165 (or 2824153 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 12652142720 in words is "twelve billion, six hundred fifty-two million, one hundred forty-two thousand, seven hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 224 280 320 448 560 640 896 1120 2240 4480 2824139 5648278 11296556 14120695 19768973 22593112 28241390 39537946 45186224 56482780 79075892 90372448 98844865 112965560 158151784 180744896 197689730 225931120 316303568 361489792 395379460 451862240 632607136 790758920 903724480 1265214272 1581517840 1807448960 2530428544 3163035680 6326071360 12652142720