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109575390 = 23531591997
BaseRepresentation
bin1101000011111…
…11110011011110
321122012000011210
412201333303132
5211022403030
614512325250
72500242531
oct641776336
9248160153
10109575390
1156941681
1230843826
1319917012
14107a4a18
159946bb0
hex687fcde

109575390 has 64 divisors (see below), whose sum is σ = 276203520. Its totient is φ = 27784320.

The previous prime is 109575379. The next prime is 109575407. The reversal of 109575390 is 93575901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53872 + ... + 55868.

It is an arithmetic number, because the mean of its divisors is an integer number (4315680).

Almost surely, 2109575390 is an apocalyptic number.

109575390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 109575390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138101760).

109575390 is an abundant number, since it is smaller than the sum of its proper divisors (166628130).

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

109575390 is a wasteful number, since it uses less digits than its factorization.

109575390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097.

The product of its (nonzero) digits is 42525, while the sum is 39.

The square root of 109575390 is about 10467.8264219464. The cubic root of 109575390 is about 478.5246801974.

The spelling of 109575390 in words is "one hundred nine million, five hundred seventy-five thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 31 59 62 93 118 155 177 186 295 310 354 465 590 885 930 1770 1829 1997 3658 3994 5487 5991 9145 9985 10974 11982 18290 19970 27435 29955 54870 59910 61907 117823 123814 185721 235646 309535 353469 371442 589115 619070 706938 928605 1178230 1767345 1857210 3534690 3652513 7305026 10957539 18262565 21915078 36525130 54787695 109575390