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13150540 = 22513371367
BaseRepresentation
bin110010001010…
…100101001100
3220202010011001
4302022211030
511331304130
61145510044
7216530524
oct62124514
926663131
1013150540
117472217
1244a2324
1329558b0
141a64684
15124b6ca
hexc8a94c

13150540 has 48 divisors (see below), whose sum is σ = 30566592. Its totient is φ = 4720896.

The previous prime is 13150531. The next prime is 13150567. The reversal of 13150540 is 4505131.

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, 8937 + ... + 10303.

It is an arithmetic number, because the mean of its divisors is an integer number (636804).

Almost surely, 213150540 is an apocalyptic number.

13150540 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 13150540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15283296).

13150540 is an abundant number, since it is smaller than the sum of its proper divisors (17416052).

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

13150540 is a wasteful number, since it uses less digits than its factorization.

13150540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1424 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 13150540 is about 3626.3673283329. The cubic root of 13150540 is about 236.0376029329.

Adding to 13150540 its reverse (4505131), we get a palindrome (17655671).

The spelling of 13150540 in words is "thirteen million, one hundred fifty thousand, five hundred forty".

Divisors: 1 2 4 5 10 13 20 26 37 52 65 74 130 148 185 260 370 481 740 962 1367 1924 2405 2734 4810 5468 6835 9620 13670 17771 27340 35542 50579 71084 88855 101158 177710 202316 252895 355420 505790 657527 1011580 1315054 2630108 3287635 6575270 13150540