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102513044 = 2225628261
BaseRepresentation
bin1100001110000…
…11100110010100
321010220012110102
412013003212110
5202220404134
614101113232
72353226564
oct607034624
9233805412
10102513044
1152958627
122a3b8818
131831360a
14d886da4
158eee37e
hex61c3994

102513044 has 6 divisors (see below), whose sum is σ = 179397834. Its totient is φ = 51256520.

The previous prime is 102513023. The next prime is 102513049. The reversal of 102513044 is 440315201.

It can be written as a sum of positive squares in only one way, i.e., 95804944 + 6708100 = 9788^2 + 2590^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102513049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12814127 + ... + 12814134.

It is an arithmetic number, because the mean of its divisors is an integer number (29899639).

Almost surely, 2102513044 is an apocalyptic number.

It is an amenable number.

102513044 is a deficient number, since it is larger than the sum of its proper divisors (76884790).

102513044 is a wasteful number, since it uses less digits than its factorization.

102513044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25628265 (or 25628263 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 102513044 is about 10124.8725424076. The cubic root of 102513044 is about 468.0149324381.

Adding to 102513044 its reverse (440315201), we get a palindrome (542828245).

The spelling of 102513044 in words is "one hundred two million, five hundred thirteen thousand, forty-four".

Divisors: 1 2 4 25628261 51256522 102513044