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102141187 = 3125113127
BaseRepresentation
bin1100001011010…
…00110100000011
321010012022100221
412011220310003
5202122004222
614045123511
72350120501
oct605506403
9233168327
10102141187
1152724205
122a259597
1318213295
14d7cb671
158e790c7
hex6168d03

102141187 has 8 divisors (see below), whose sum is σ = 105864192. Its totient is φ = 98445000.

The previous prime is 102141173. The next prime is 102141203. The reversal of 102141187 is 781141201.

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 102141187 - 211 = 102139139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102141107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1218 + ... + 14344.

It is an arithmetic number, because the mean of its divisors is an integer number (13233024).

Almost surely, 2102141187 is an apocalyptic number.

102141187 is a deficient number, since it is larger than the sum of its proper divisors (3723005).

102141187 is a wasteful number, since it uses less digits than its factorization.

102141187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13409.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 102141187 is about 10106.4923192965. The cubic root of 102141187 is about 467.4483525546.

Adding to 102141187 its reverse (781141201), we get a palindrome (883282388).

The spelling of 102141187 in words is "one hundred two million, one hundred forty-one thousand, one hundred eighty-seven".

Divisors: 1 31 251 7781 13127 406937 3294877 102141187