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13312030 = 2561139157
BaseRepresentation
bin110010110010…
…000000011110
3221001022200011
4302302000132
511401441110
61153153434
7221102404
oct62620036
927038604
1013312030
117572586
12455b87a
1329b1254
141aa7474
15127e48a
hexcb201e

13312030 has 32 divisors (see below), whose sum is σ = 24685920. Its totient is φ = 5166720.

The previous prime is 13312021. The next prime is 13312031. The reversal of 13312030 is 3021331.

It is a self number, because there is not a number n which added to its sum of digits gives 13312030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312031) 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, 84712 + ... + 84868.

It is an arithmetic number, because the mean of its divisors is an integer number (771435).

Almost surely, 213312030 is an apocalyptic number.

13312030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13312030 is a deficient number, since it is larger than the sum of its proper divisors (11373890).

13312030 is a wasteful number, since it uses less digits than its factorization.

13312030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 13312030 is about 3648.5654715244. The cubic root of 13312030 is about 236.9998635071. Note that the first 3 decimals are identical.

Adding to 13312030 its reverse (3021331), we get a palindrome (16333361).

The spelling of 13312030 in words is "thirteen million, three hundred twelve thousand, thirty".

Divisors: 1 2 5 10 61 122 139 157 278 305 314 610 695 785 1390 1570 8479 9577 16958 19154 21823 42395 43646 47885 84790 95770 109115 218230 1331203 2662406 6656015 13312030