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104487149 = 1337217229
BaseRepresentation
bin1100011101001…
…01100011101101
321021121111102102
412032211203231
5203222042044
614211304445
72406061154
oct616454355
9237544372
10104487149
1153a86818
122abab125
1318855020
14dc3c59b
15928e24e
hex63a58ed

104487149 has 8 divisors (see below), whose sum is σ = 115566360. Its totient is φ = 93842496.

The previous prime is 104487077. The next prime is 104487179. The reversal of 104487149 is 941784401.

It can be written as a sum of positive squares in 4 ways, for example, as 1322500 + 103164649 = 1150^2 + 10157^2 .

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 104487149 - 212 = 104483053 is a prime.

It is a super-2 number, since 2×1044871492 = 21835128612296402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104487179) 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, 108134 + ... + 109095.

It is an arithmetic number, because the mean of its divisors is an integer number (14445795).

Almost surely, 2104487149 is an apocalyptic number.

It is an amenable number.

104487149 is a deficient number, since it is larger than the sum of its proper divisors (11079211).

104487149 is a wasteful number, since it uses less digits than its factorization.

104487149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217279.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 104487149 is about 10221.8955678485. The cubic root of 104487149 is about 471.0000570979. Note that the first 4 decimals are identical.

Subtracting from 104487149 its sum of digits (38), we obtain a cube (104487111 = 4713).

The spelling of 104487149 in words is "one hundred four million, four hundred eighty-seven thousand, one hundred forty-nine".

Divisors: 1 13 37 481 217229 2823977 8037473 104487149