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13125741 = 3311131249
BaseRepresentation
bin110010000100…
…100001101101
3220200212010120
4302010201231
511330010431
61145155153
7216365316
oct62044155
926625116
1013125741
117455622
12448bab9
132947515
141a5960d
151244196
hexc8486d

13125741 has 16 divisors (see below), whose sum is σ = 18240000. Its totient is φ = 8386560.

The previous prime is 13125727. The next prime is 13125767. The reversal of 13125741 is 14752131.

It is not a de Polignac number, because 13125741 - 210 = 13124717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125701) 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, 9885 + ... + 11133.

It is an arithmetic number, because the mean of its divisors is an integer number (1140000).

Almost surely, 213125741 is an apocalyptic number.

It is an amenable number.

13125741 is a deficient number, since it is larger than the sum of its proper divisors (5114259).

13125741 is a wasteful number, since it uses less digits than its factorization.

13125741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396.

The product of its digits is 840, while the sum is 24.

The square root of 13125741 is about 3622.9464528199. The cubic root of 13125741 is about 235.8891380577.

Adding to 13125741 its reverse (14752131), we get a palindrome (27877872).

The spelling of 13125741 in words is "thirteen million, one hundred twenty-five thousand, seven hundred forty-one".

Divisors: 1 3 31 93 113 339 1249 3503 3747 10509 38719 116157 141137 423411 4375247 13125741