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15013140 = 2235594241
BaseRepresentation
bin111001010001…
…010100010100
31001020202011020
4321101110110
512320410030
61253441140
7241416042
oct71212424
931222136
1015013140
11852465a
1250401b0
13315861c
141dcb392
1514b8510
hexe51514

15013140 has 48 divisors (see below), whose sum is σ = 42759360. Its totient is φ = 3934720.

The previous prime is 15013139. The next prime is 15013153. The reversal of 15013140 is 4131051.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1420 + ... + 5660.

It is an arithmetic number, because the mean of its divisors is an integer number (890820).

Almost surely, 215013140 is an apocalyptic number.

15013140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15013140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21379680).

15013140 is an abundant number, since it is smaller than the sum of its proper divisors (27746220).

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

15013140 is a wasteful number, since it uses less digits than its factorization.

15013140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312 (or 4310 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 15013140 is about 3874.6793415714. The cubic root of 15013140 is about 246.6931998079.

Adding to 15013140 its reverse (4131051), we get a palindrome (19144191).

The spelling of 15013140 in words is "fifteen million, thirteen thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 59 60 118 177 236 295 354 590 708 885 1180 1770 3540 4241 8482 12723 16964 21205 25446 42410 50892 63615 84820 127230 250219 254460 500438 750657 1000876 1251095 1501314 2502190 3002628 3753285 5004380 7506570 15013140