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102450012 = 22371219643
BaseRepresentation
bin1100001101101…
…00001101011100
321010202222222220
412012310031130
5202211400022
614055505340
72352545040
oct606641534
9233688886
10102450012
1152915235
122a388250
13182c0a12
14d86c020
158eda85c
hex61b435c

102450012 has 24 divisors (see below), whose sum is σ = 273200256. Its totient is φ = 29271408.

The previous prime is 102449987. The next prime is 102450017. The reversal of 102450012 is 210054201.

It is a junction number, because it is equal to n+sod(n) for n = 102449973 and 102450000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102450017) 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 7 ways as a sum of consecutive naturals, for example, 609738 + ... + 609905.

It is an arithmetic number, because the mean of its divisors is an integer number (11383344).

Almost surely, 2102450012 is an apocalyptic number.

102450012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102450012 is an abundant number, since it is smaller than the sum of its proper divisors (170750244).

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

102450012 is a wasteful number, since it uses less digits than its factorization.

102450012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219657 (or 1219655 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 102450012 is about 10121.7593332385. The cubic root of 102450012 is about 467.9189902882.

The spelling of 102450012 in words is "one hundred two million, four hundred fifty thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1219643 2439286 3658929 4878572 7317858 8537501 14635716 17075002 25612503 34150004 51225006 102450012