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109148260 = 22513419801
BaseRepresentation
bin1101000000101…
…11100001100100
321121101022021011
412200113201210
5210420221020
614455232004
72463513334
oct640274144
9247338234
10109148260
115667a781
1230678604
13197c7790
14106d30c4
1598b035a
hex6817864

109148260 has 24 divisors (see below), whose sum is σ = 246843576. Its totient is φ = 40300800.

The previous prime is 109148251. The next prime is 109148267. The reversal of 109148260 is 62841901.

109148260 = T1800 + T1801 + ... + T1864.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13734436 + 95413824 = 3706^2 + 9768^2 .

It is a super-2 number, since 2×1091482602 = 23826685322055200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109148267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209641 + ... + 210160.

It is an arithmetic number, because the mean of its divisors is an integer number (10285149).

Almost surely, 2109148260 is an apocalyptic number.

109148260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109148260 is an abundant number, since it is smaller than the sum of its proper divisors (137695316).

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

109148260 is a wasteful number, since it uses less digits than its factorization.

109148260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419823 (or 419821 counting only the distinct ones).

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

The square root of 109148260 is about 10447.4044623533. The cubic root of 109148260 is about 477.9021000112.

The spelling of 109148260 in words is "one hundred nine million, one hundred forty-eight thousand, two hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 419801 839602 1679204 2099005 4198010 5457413 8396020 10914826 21829652 27287065 54574130 109148260