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104961261 = 3131409653
BaseRepresentation
bin1100100000110…
…01010011101101
321022111120210010
412100121103231
5203332230021
614225403433
72413104336
oct620312355
9238446703
10104961261
115427aa49
122b199579
131898ca72
14dd2328d
159334976
hex64194ed

104961261 has 16 divisors (see below), whose sum is σ = 141577920. Its totient is φ = 69164160.

The previous prime is 104961239. The next prime is 104961277. The reversal of 104961261 is 162169401.

It is a happy number.

It is not a de Polignac number, because 104961261 - 215 = 104928493 is a prime.

It is a super-2 number, since 2×1049612612 = 22033732621420242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104961211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160411 + ... + 161063.

It is an arithmetic number, because the mean of its divisors is an integer number (8848620).

Almost surely, 2104961261 is an apocalyptic number.

It is an amenable number.

104961261 is a deficient number, since it is larger than the sum of its proper divisors (36616659).

104961261 is a wasteful number, since it uses less digits than its factorization.

104961261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 104961261 is about 10245.0603219308. The cubic root of 104961261 is about 471.7113722451.

The spelling of 104961261 in words is "one hundred four million, nine hundred sixty-one thousand, two hundred sixty-one".

Divisors: 1 3 131 393 409 653 1227 1959 53579 85543 160737 256629 267077 801231 34987087 104961261