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102507841 = 177382601
BaseRepresentation
bin1100001110000…
…10010101000001
321010212221022201
412013002111001
5202220222331
614101033201
72353205452
oct607022501
9233787281
10102507841
1152954727
122a3b5801
1318311137
14d885129
158eeca61
hex61c2541

102507841 has 8 divisors (see below), whose sum is σ = 110025864. Its totient is φ = 95155200.

The previous prime is 102507827. The next prime is 102507857. The reversal of 102507841 is 148705201.

It can be written as a sum of positive squares in 4 ways, for example, as 20061441 + 82446400 = 4479^2 + 9080^2 .

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 102507841 - 215 = 102475073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102507541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40060 + ... + 42541.

It is an arithmetic number, because the mean of its divisors is an integer number (13753233).

Almost surely, 2102507841 is an apocalyptic number.

It is an amenable number.

102507841 is a deficient number, since it is larger than the sum of its proper divisors (7518023).

102507841 is an equidigital number, since it uses as much as digits as its factorization.

102507841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82691.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 102507841 is about 10124.6155976412. The cubic root of 102507841 is about 468.0070143469.

The spelling of 102507841 in words is "one hundred two million, five hundred seven thousand, eight hundred forty-one".

Divisors: 1 17 73 1241 82601 1404217 6029873 102507841