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104415389 = 138031953
BaseRepresentation
bin1100011100101…
…00000010011101
321021110211222122
412032110002131
5203212243024
614205552325
72405342021
oct616240235
9237424878
10104415389
1153a37911
122ab756a5
131882b470
14dc20381
159277d5e
hex639409d

104415389 has 4 divisors (see below), whose sum is σ = 112447356. Its totient is φ = 96383424.

The previous prime is 104415371. The next prime is 104415401. The reversal of 104415389 is 983514401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59752900 + 44662489 = 7730^2 + 6683^2 .

It is a cyclic number.

It is not a de Polignac number, because 104415389 - 216 = 104349853 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104415329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4015964 + ... + 4015989.

It is an arithmetic number, because the mean of its divisors is an integer number (28111839).

Almost surely, 2104415389 is an apocalyptic number.

It is an amenable number.

104415389 is a deficient number, since it is larger than the sum of its proper divisors (8031967).

104415389 is an equidigital number, since it uses as much as digits as its factorization.

104415389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8031966.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 104415389 is about 10218.3848528033. The cubic root of 104415389 is about 470.8922074568.

The spelling of 104415389 in words is "one hundred four million, four hundred fifteen thousand, three hundred eighty-nine".

Divisors: 1 13 8031953 104415389