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109364988 = 223191034657
BaseRepresentation
bin1101000010011…
…00011011111100
321121210022120010
412201030123330
5210444134423
614504023220
72465405235
oct641143374
9247708503
10109364988
1156808597
1230761b10
1319872315
141074c08c
159904693
hex684c6fc

109364988 has 48 divisors (see below), whose sum is σ = 271281920. Its totient is φ = 34193664.

The previous prime is 109364987. The next prime is 109364989. The reversal of 109364988 is 889463901.

It is an interprime number because it is at equal distance from previous prime (109364987) and next prime (109364989).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109364987) 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, 21156 + ... + 25812.

Almost surely, 2109364988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109364988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135640960).

109364988 is an abundant number, since it is smaller than the sum of its proper divisors (161916932).

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

109364988 is a wasteful number, since it uses less digits than its factorization.

109364988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786 (or 4784 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 109364988 is about 10457.7716555679. The cubic root of 109364988 is about 478.2182030444.

The spelling of 109364988 in words is "one hundred nine million, three hundred sixty-four thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 103 114 206 228 309 412 618 1236 1957 3914 4657 5871 7828 9314 11742 13971 18628 23484 27942 55884 88483 176966 265449 353932 479671 530898 959342 1061796 1439013 1918684 2878026 5756052 9113749 18227498 27341247 36454996 54682494 109364988