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13040133320 = 235833927751
BaseRepresentation
bin11000010010100000…
…01010010011001000
31020122210022102000202
430021100022103020
5203201233231240
65553543151332
7641101206254
oct141120122310
936583272022
1013040133320
1155918a7195
12263b145548
1312ca7b4126
148b9c15264
15514c2d315
hex30940a4c8

13040133320 has 32 divisors (see below), whose sum is σ = 29693805120. Its totient is φ = 5153208000.

The previous prime is 13040133319. The next prime is 13040133329. The reversal of 13040133320 is 2333104031.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13040133292 and 13040133301.

It is not an unprimeable number, because it can be changed into a prime (13040133329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1960556 + ... + 1967195.

It is an arithmetic number, because the mean of its divisors is an integer number (927931410).

Almost surely, 213040133320 is an apocalyptic number.

13040133320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13040133320 is an abundant number, since it is smaller than the sum of its proper divisors (16653671800).

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

13040133320 is a wasteful number, since it uses less digits than its factorization.

13040133320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3927845 (or 3927841 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 13040133320 its reverse (2333104031), we get a palindrome (15373237351).

The spelling of 13040133320 in words is "thirteen billion, forty million, one hundred thirty-three thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 83 166 332 415 664 830 1660 3320 3927751 7855502 15711004 19638755 31422008 39277510 78555020 157110040 326003333 652006666 1304013332 1630016665 2608026664 3260033330 6520066660 13040133320