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109764648 = 233271723557
BaseRepresentation
bin1101000101011…
…10000000101000
321122112121210100
412202232000220
5211044432043
614520345400
72501661360
oct642560050
9248477710
10109764648
1156a60894
1230915260
13199821c6
14108139a0
159982cd3
hex68ae028

109764648 has 192 divisors, whose sum is σ = 376047360. Its totient is φ = 28182528.

The previous prime is 109764637. The next prime is 109764649. The reversal of 109764648 is 846467901.

It is not an unprimeable number, because it can be changed into a prime (109764649) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196786 + ... + 197342.

It is an arithmetic number, because the mean of its divisors is an integer number (1958580).

Almost surely, 2109764648 is an apocalyptic number.

109764648 is a gapful number since it is divisible by the number (18) 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 109764648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188023680).

109764648 is an abundant number, since it is smaller than the sum of its proper divisors (266282712).

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

109764648 is a wasteful number, since it uses less digits than its factorization.

109764648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 109764648 is about 10476.8625074495. The cubic root of 109764648 is about 478.8000234504.

The spelling of 109764648 in words is "one hundred nine million, seven hundred sixty-four thousand, six hundred forty-eight".