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109148500 = 22531712841
BaseRepresentation
bin1101000000101…
…11100101010100
321121101022121001
412200113211110
5210420223000
614455233044
72463514126
oct640274524
9247338531
10109148500
115667a97a
1230678784
13197c7916
14106d3216
1598b046a
hex6817954

109148500 has 48 divisors (see below), whose sum is σ = 252422352. Its totient is φ = 41088000.

The previous prime is 109148497. The next prime is 109148537. The reversal of 109148500 is 5841901.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 22695696 + 86452804 = 4764^2 + 9298^2 .

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, 2080 + ... + 14920.

It is an arithmetic number, because the mean of its divisors is an integer number (5258799).

Almost surely, 2109148500 is an apocalyptic number.

109148500 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 109148500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126211176).

109148500 is an abundant number, since it is smaller than the sum of its proper divisors (143273852).

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

109148500 is a wasteful number, since it uses less digits than its factorization.

109148500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12877 (or 12865 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 109148500 is about 10447.4159484535. The cubic root of 109148500 is about 477.9024502884.

The spelling of 109148500 in words is "one hundred nine million, one hundred forty-eight thousand, five hundred".

Divisors: 1 2 4 5 10 17 20 25 34 50 68 85 100 125 170 250 340 425 500 850 1700 2125 4250 8500 12841 25682 51364 64205 128410 218297 256820 321025 436594 642050 873188 1091485 1284100 1605125 2182970 3210250 4365940 5457425 6420500 10914850 21829700 27287125 54574250 109148500