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104130621 = 3271986993
BaseRepresentation
bin1100011010011…
…10100000111101
321020221101100200
412031032200331
5203124134441
614155514113
72403044550
oct615164075
9236841320
10104130621
1153862971
122aa58939
131875b96a
14db88697
15921d7b6
hex634e83d

104130621 has 24 divisors (see below), whose sum is σ = 180947520. Its totient is φ = 56370816.

The previous prime is 104130601. The next prime is 104130647. The reversal of 104130621 is 126031401.

It is a happy number.

104130621 is a `hidden beast` number, since 1 + 0 + 41 + 3 + 0 + 621 = 666.

It is not a de Polignac number, because 104130621 - 25 = 104130589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104130594 and 104130603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104130601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42300 + ... + 44693.

It is an arithmetic number, because the mean of its divisors is an integer number (7539480).

Almost surely, 2104130621 is an apocalyptic number.

It is an amenable number.

104130621 is a deficient number, since it is larger than the sum of its proper divisors (76816899).

104130621 is a wasteful number, since it uses less digits than its factorization.

104130621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87025 (or 87022 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 104130621 is about 10204.4412389900. The cubic root of 104130621 is about 470.4637357456.

The spelling of 104130621 in words is "one hundred four million, one hundred thirty thousand, six hundred twenty-one".

Divisors: 1 3 7 9 19 21 57 63 133 171 399 1197 86993 260979 608951 782937 1652867 1826853 4958601 5480559 11570069 14875803 34710207 104130621