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13152540 = 2235223983
BaseRepresentation
bin110010001011…
…000100011100
3220202012220010
4302023010130
511331340130
61145523220
7216536412
oct62130434
926665803
1013152540
117473775
1244a3510
13295678b
141a652b2
15124c0b0
hexc8b11c

13152540 has 48 divisors (see below), whose sum is σ = 37029888. Its totient is φ = 3488064.

The previous prime is 13152511. The next prime is 13152563. The reversal of 13152540 is 4525131.

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, 12889 + ... + 13871.

It is an arithmetic number, because the mean of its divisors is an integer number (771456).

Almost surely, 213152540 is an apocalyptic number.

13152540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13152540 is an abundant number, since it is smaller than the sum of its proper divisors (23877348).

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

13152540 is a wasteful number, since it uses less digits than its factorization.

13152540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218 (or 1216 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 13152540 is about 3626.6430759037. The cubic root of 13152540 is about 236.0495682533.

Adding to 13152540 its reverse (4525131), we get a palindrome (17677671).

The spelling of 13152540 in words is "thirteen million, one hundred fifty-two thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 223 446 669 892 983 1115 1338 1966 2230 2676 2949 3345 3932 4460 4915 5898 6690 9830 11796 13380 14745 19660 29490 58980 219209 438418 657627 876836 1096045 1315254 2192090 2630508 3288135 4384180 6576270 13152540