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13320461 = 711172993
BaseRepresentation
bin110010110100…
…000100001101
3221001202020102
4302310010031
511402223321
61153300445
7221136110
oct62640415
927052212
1013320461
117578950
124564725
1329b503b
141aaa577
151281c0b
hexcb410d

13320461 has 8 divisors (see below), whose sum is σ = 16607424. Its totient is φ = 10379520.

The previous prime is 13320457. The next prime is 13320467. The reversal of 13320461 is 16402331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13320461 - 22 = 13320457 is a prime.

It is a super-4 number, since 4×133204614 (a number of 30 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86420 + ... + 86573.

It is an arithmetic number, because the mean of its divisors is an integer number (2075928).

Almost surely, 213320461 is an apocalyptic number.

13320461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13320461 is a deficient number, since it is larger than the sum of its proper divisors (3286963).

13320461 is a wasteful number, since it uses less digits than its factorization.

13320461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173011.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 13320461 is about 3649.7206742434. The cubic root of 13320461 is about 237.0498865355.

Adding to 13320461 its reverse (16402331), we get a palindrome (29722792).

The spelling of 13320461 in words is "thirteen million, three hundred twenty thousand, four hundred sixty-one".

Divisors: 1 7 11 77 172993 1210951 1902923 13320461