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104869487 = 167627961
BaseRepresentation
bin1100100000000…
…10111001101111
321022022220220002
412100002321233
5203321310422
614223414515
72412242642
oct620027157
9238286802
10104869487
1154217aa8
122b15443b
131895a068
14dcdba59
159317692
hex6402e6f

104869487 has 4 divisors (see below), whose sum is σ = 105497616. Its totient is φ = 104241360.

The previous prime is 104869483. The next prime is 104869517. The reversal of 104869487 is 784968401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784968401 = 7112138343.

It is a cyclic number.

It is not a de Polignac number, because 104869487 - 22 = 104869483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104869483) 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 3 ways as a sum of consecutive naturals, for example, 313814 + ... + 314147.

It is an arithmetic number, because the mean of its divisors is an integer number (26374404).

Almost surely, 2104869487 is an apocalyptic number.

104869487 is a deficient number, since it is larger than the sum of its proper divisors (628129).

104869487 is an equidigital number, since it uses as much as digits as its factorization.

104869487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628128.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 104869487 is about 10240.5804034732. The cubic root of 104869487 is about 471.5738501966.

The spelling of 104869487 in words is "one hundred four million, eight hundred sixty-nine thousand, four hundred eighty-seven".

Divisors: 1 167 627961 104869487