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102442612 = 22171506509
BaseRepresentation
bin1100001101100…
…10011001110100
321010202121211211
412012302121310
5202211130422
614055411204
72352514336
oct606623164
9233677754
10102442612
115290a718
122a383b04
13182ba53c
14d869456
158ed8577
hex61b2674

102442612 has 12 divisors (see below), whose sum is σ = 189820260. Its totient is φ = 48208256.

The previous prime is 102442609. The next prime is 102442651. The reversal of 102442612 is 216244201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 91126116 + 11316496 = 9546^2 + 3364^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 753187 + ... + 753322.

It is an arithmetic number, because the mean of its divisors is an integer number (15818355).

Almost surely, 2102442612 is an apocalyptic number.

It is an amenable number.

102442612 is a deficient number, since it is larger than the sum of its proper divisors (87377648).

102442612 is a wasteful number, since it uses less digits than its factorization.

102442612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506530 (or 1506528 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 102442612 is about 10121.3937775387. The cubic root of 102442612 is about 467.9077240332.

Adding to 102442612 its reverse (216244201), we get a palindrome (318686813).

The spelling of 102442612 in words is "one hundred two million, four hundred forty-two thousand, six hundred twelve".

Divisors: 1 2 4 17 34 68 1506509 3013018 6026036 25610653 51221306 102442612