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51498108 = 22321430503
BaseRepresentation
bin1100010001110…
…0110001111100
310120220101010100
43010130301330
5101140414413
65035441100
71163504154
oct304346174
9116811110
1051498108
1127084322
12152b6190
13a89126c
146ba7764
1547c3a73
hex311cc7c

51498108 has 18 divisors (see below), whose sum is σ = 130175864. Its totient is φ = 17166024.

The previous prime is 51498103. The next prime is 51498131. The reversal of 51498108 is 80189415.

51498108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1430503 = 51498108 / (5 + 1 + 4 + 9 + 8 + 1 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51498103) 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 5 ways as a sum of consecutive naturals, for example, 715216 + ... + 715287.

Almost surely, 251498108 is an apocalyptic number.

It is an amenable number.

51498108 is an abundant number, since it is smaller than the sum of its proper divisors (78677756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51498108 is a wasteful number, since it uses less digits than its factorization.

51498108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430513 (or 1430508 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 51498108 is about 7176.2182241066. The cubic root of 51498108 is about 372.0463868621.

The spelling of 51498108 in words is "fifty-one million, four hundred ninety-eight thousand, one hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 1430503 2861006 4291509 5722012 8583018 12874527 17166036 25749054 51498108