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104987629 = 711478699
BaseRepresentation
bin1100100000111…
…11101111101101
321022112220221201
412100133233231
5203334101004
614230125501
72413244245
oct620375755
9238486851
10104987629
115429883a
122b1b0891
131899ba76
14dd2cb25
15933c6a4
hex641fbed

104987629 has 4 divisors (see below), whose sum is σ = 106466400. Its totient is φ = 103508860.

The previous prime is 104987551. The next prime is 104987633. The reversal of 104987629 is 926789401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 926789401 = 5303174767.

It is a cyclic number.

It is not a de Polignac number, because 104987629 - 219 = 104463341 is a prime.

It is a super-2 number, since 2×1049876292 = 22044804486083282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104987689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739279 + ... + 739420.

It is an arithmetic number, because the mean of its divisors is an integer number (26616600).

Almost surely, 2104987629 is an apocalyptic number.

It is an amenable number.

104987629 is a deficient number, since it is larger than the sum of its proper divisors (1478771).

104987629 is an equidigital number, since it uses as much as digits as its factorization.

104987629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478770.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 104987629 is about 10246.3471051883. The cubic root of 104987629 is about 471.7508694969.

The spelling of 104987629 in words is "one hundred four million, nine hundred eighty-seven thousand, six hundred twenty-nine".

Divisors: 1 71 1478699 104987629