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13491148 = 22112997109
BaseRepresentation
bin110011011101…
…101111001100
3221101102101011
4303131233030
511423204043
61201055004
7222446536
oct63355714
927342334
1013491148
117685110
124627464
132a44938
141b12856
1512b759d
hexcddbcc

13491148 has 48 divisors (see below), whose sum is σ = 27165600. Its totient is φ = 5806080.

The previous prime is 13491143. The next prime is 13491161. The reversal of 13491148 is 84119431.

It is a super-2 number, since 2×134911482 = 364022148715808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13491143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123718 + ... + 123826.

It is an arithmetic number, because the mean of its divisors is an integer number (565950).

Almost surely, 213491148 is an apocalyptic number.

It is an amenable number.

13491148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

13491148 is a wasteful number, since it uses less digits than its factorization.

13491148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 248 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 13491148 is about 3673.0298120217. The cubic root of 13491148 is about 238.0581031787.

The spelling of 13491148 in words is "thirteen million, four hundred ninety-one thousand, one hundred forty-eight".

Divisors: 1 2 4 11 22 29 44 58 97 109 116 194 218 319 388 436 638 1067 1199 1276 2134 2398 2813 3161 4268 4796 5626 6322 10573 11252 12644 21146 30943 34771 42292 61886 69542 116303 123772 139084 232606 306617 465212 613234 1226468 3372787 6745574 13491148