Search a number
-
+
13630051540 = 2257257378823
BaseRepresentation
bin11001011000110101…
…00001010011010100
31022011220100100200201
430230122201103110
5210403243122130
610132255150244
7661523345410
oct145432412324
938156310621
1013630051540
115864899506
122784815384
131392a8cb71
149342d5d40
1554b908bca
hex32c6a14d4

13630051540 has 48 divisors (see below), whose sum is σ = 32839494912. Its totient is φ = 4654964736.

The previous prime is 13630051517. The next prime is 13630051543. The reversal of 13630051540 is 4515003631.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 13630051499 and 13630051508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13630051543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153432 + ... + 225391.

It is an arithmetic number, because the mean of its divisors is an integer number (684156144).

Almost surely, 213630051540 is an apocalyptic number.

13630051540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13630051540 is an abundant number, since it is smaller than the sum of its proper divisors (19209443372).

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

13630051540 is a wasteful number, since it uses less digits than its factorization.

13630051540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379096 (or 379094 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 13630051540 in words is "thirteen billion, six hundred thirty million, fifty-one thousand, five hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 257 514 1028 1285 1799 2570 3598 5140 7196 8995 17990 35980 378823 757646 1515292 1894115 2651761 3788230 5303522 7576460 10607044 13258805 26517610 53035220 97357511 194715022 389430044 486787555 681502577 973575110 1363005154 1947150220 2726010308 3407512885 6815025770 13630051540