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13146881460 = 2235297555679
BaseRepresentation
bin11000011111001110…
…10111110110110100
31020221020011202221120
430033213113312310
5203411100201320
610012315143540
7643535435316
oct141747276664
936836152846
1013146881460
115637087699
12266aa44bb0
13131694b2cb
148ca0817b6
1551e2b7440
hex30f9d7db4

13146881460 has 48 divisors (see below), whose sum is σ = 38080627200. Its totient is φ = 3384943744.

The previous prime is 13146881417. The next prime is 13146881471. The reversal of 13146881460 is 6418864131.

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, 3776100 + ... + 3779579.

It is an arithmetic number, because the mean of its divisors is an integer number (793346400).

Almost surely, 213146881460 is an apocalyptic number.

13146881460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13146881460 is an abundant number, since it is smaller than the sum of its proper divisors (24933745740).

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

13146881460 is a wasteful number, since it uses less digits than its factorization.

13146881460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7555720 (or 7555718 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 13146881460 in words is "thirteen billion, one hundred forty-six million, eight hundred eighty-one thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 58 60 87 116 145 174 290 348 435 580 870 1740 7555679 15111358 22667037 30222716 37778395 45334074 75556790 90668148 113335185 151113580 219114691 226670370 438229382 453340740 657344073 876458764 1095573455 1314688146 2191146910 2629376292 3286720365 4382293820 6573440730 13146881460