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102493187 = 177278293
BaseRepresentation
bin1100001101111…
…10110000000011
321010212012012222
412012332300003
5202214240222
614100441255
72353114646
oct606766003
9233765188
10102493187
1152944715
122a3a922b
1318307574
14d87da5d
158ee8542
hex61bec03

102493187 has 8 divisors (see below), whose sum is σ = 108684576. Its totient is φ = 96319872.

The previous prime is 102493169. The next prime is 102493199. The reversal of 102493187 is 781394201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102493187 - 222 = 98298883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102493117) 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, 8213 + ... + 16505.

It is an arithmetic number, because the mean of its divisors is an integer number (13585572).

Almost surely, 2102493187 is an apocalyptic number.

102493187 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

102493187 is a deficient number, since it is larger than the sum of its proper divisors (6191389).

102493187 is an equidigital number, since it uses as much as digits as its factorization.

102493187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9037.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 102493187 is about 10123.8918899799. The cubic root of 102493187 is about 467.9847119826.

It can be divided in two parts, 102493 and 187, that multiplied together give a palindrome (19166191).

The spelling of 102493187 in words is "one hundred two million, four hundred ninety-three thousand, one hundred eighty-seven".

Divisors: 1 17 727 8293 12359 140981 6029011 102493187