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10125140 = 2251812797
BaseRepresentation
bin100110100111…
…111101010100
3201001102002012
4212213331110
510043001030
61001003352
7152030234
oct46477524
921042065
1010125140
115796193
123483558
13213680c
1414b7cc4
15d50095
hex9a7f54

10125140 has 24 divisors (see below), whose sum is σ = 21387912. Its totient is φ = 4026240.

The previous prime is 10125131. The next prime is 10125169. The reversal of 10125140 is 4152101.

It can be written as a sum of positive squares in 4 ways, for example, as 114244 + 10010896 = 338^2 + 3164^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2222 + ... + 5018.

It is an arithmetic number, because the mean of its divisors is an integer number (891163).

Almost surely, 210125140 is an apocalyptic number.

10125140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10125140 is an abundant number, since it is smaller than the sum of its proper divisors (11262772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10125140 is a wasteful number, since it uses less digits than its factorization.

10125140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987 (or 2985 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 10125140 is about 3182.0025141411. The cubic root of 10125140 is about 216.3384326523.

Adding to 10125140 its reverse (4152101), we get a palindrome (14277241).

The spelling of 10125140 in words is "ten million, one hundred twenty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 181 362 724 905 1810 2797 3620 5594 11188 13985 27970 55940 506257 1012514 2025028 2531285 5062570 10125140