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13628461 = 711379467
BaseRepresentation
bin110011111111…
…010000101101
3221122101201211
4303333100231
511442102321
61204034421
7223561060
oct63772055
927571654
1013628461
1177692a0
124692a11
132a922a2
141b4a8d7
1512e30e1
hexcff42d

13628461 has 16 divisors (see below), whose sum is σ = 17072640. Its totient is φ = 10568880.

The previous prime is 13628413. The next prime is 13628467. The reversal of 13628461 is 16482631.

It is a happy number.

It is not a de Polignac number, because 13628461 - 211 = 13626413 is a prime.

It is a Duffinian number.

Its product of digits (6912) is a multiple of the sum of its prime divisors (864).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13628467) 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, 28950 + ... + 29416.

It is an arithmetic number, because the mean of its divisors is an integer number (1067040).

Almost surely, 213628461 is an apocalyptic number.

13628461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13628461 is a deficient number, since it is larger than the sum of its proper divisors (3444179).

13628461 is a wasteful number, since it uses less digits than its factorization.

13628461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864.

The product of its digits is 6912, while the sum is 31.

The square root of 13628461 is about 3691.6745522865. The cubic root of 13628461 is about 238.8630308249.

The spelling of 13628461 in words is "thirteen million, six hundred twenty-eight thousand, four hundred sixty-one".

Divisors: 1 7 11 77 379 467 2653 3269 4169 5137 29183 35959 176993 1238951 1946923 13628461