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102412133 = 887115459
BaseRepresentation
bin1100001101010…
…10111101100101
321010201002000222
412012222331211
5202204142013
614055014125
72352326435
oct606527545
9233632028
10102412133
115289982a
122a36a345
13182a96c5
14d85c2c5
158ece508
hex61aaf65

102412133 has 4 divisors (see below), whose sum is σ = 102528480. Its totient is φ = 102295788.

The previous prime is 102412103. The next prime is 102412139. The reversal of 102412133 is 331214201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 331214201 = 615429741.

It is a cyclic number.

It is not a de Polignac number, because 102412133 - 224 = 85634917 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 (102412139) 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, 56843 + ... + 58616.

It is an arithmetic number, because the mean of its divisors is an integer number (25632120).

Almost surely, 2102412133 is an apocalyptic number.

It is an amenable number.

102412133 is a deficient number, since it is larger than the sum of its proper divisors (116347).

102412133 is an equidigital number, since it uses as much as digits as its factorization.

102412133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116346.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 102412133 is about 10119.8879934513. The cubic root of 102412133 is about 467.8613150443.

Adding to 102412133 its reverse (331214201), we get a palindrome (433626334).

The spelling of 102412133 in words is "one hundred two million, four hundred twelve thousand, one hundred thirty-three".

Divisors: 1 887 115459 102412133