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102497387 = 10928627
BaseRepresentation
bin1100001101111…
…11110001101011
321010212101222112
412012333301223
5202214404022
614100512535
72353133126
oct606776153
9233771875
10102497387
1152947893
122a3ab74b
1318309455
14d8813bd
158ee98e2
hex61bfc6b

102497387 has 6 divisors (see below), whose sum is σ = 103458348. Its totient is φ = 101545272.

The previous prime is 102497383. The next prime is 102497393. The reversal of 102497387 is 783794201.

It is not a de Polignac number, because 102497387 - 22 = 102497383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102497383) 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 5 ways as a sum of consecutive naturals, for example, 7568 + ... + 16194.

It is an arithmetic number, because the mean of its divisors is an integer number (17243058).

Almost surely, 2102497387 is an apocalyptic number.

102497387 is a deficient number, since it is larger than the sum of its proper divisors (960961).

102497387 is an frugal number, since it uses more digits than its factorization.

102497387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8845 (or 8736 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 102497387 is about 10124.0993179640. The cubic root of 102497387 is about 467.9911043065.

The spelling of 102497387 in words is "one hundred two million, four hundred ninety-seven thousand, three hundred eighty-seven".

Divisors: 1 109 8627 11881 940343 102497387