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102418871 = 137747583
BaseRepresentation
bin1100001101011…
…00100110110111
321010201102021112
412012230212313
5202204400441
614055105235
72352355202
oct606544667
9233642245
10102418871
11528a38a5
122a37221b
13182ac7a9
14d860939
158ed14eb
hex61ac9b7

102418871 has 4 divisors (see below), whose sum is σ = 103166592. Its totient is φ = 101671152.

The previous prime is 102418837. The next prime is 102418879. The reversal of 102418871 is 178814201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178814201 = 271659831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102418871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102418879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373655 + ... + 373928.

It is an arithmetic number, because the mean of its divisors is an integer number (25791648).

Almost surely, 2102418871 is an apocalyptic number.

102418871 is a deficient number, since it is larger than the sum of its proper divisors (747721).

102418871 is an equidigital number, since it uses as much as digits as its factorization.

102418871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747720.

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 102418871 is about 10120.2208967986. The cubic root of 102418871 is about 467.8715754836.

The spelling of 102418871 in words is "one hundred two million, four hundred eighteen thousand, eight hundred seventy-one".

Divisors: 1 137 747583 102418871