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109162755840 = 2835294123909
BaseRepresentation
bin110010110101010011…
…0110111011100000000
3101102202201222120022010
41211222212313130000
53242031131141330
6122052040412520
710613104054245
oct1455246673400
9342681876263
10109162755840
1142328591196
12191a6477140
13a3a8c06968
1453d7d215cc
152c8d8653b0
hex196a9b7700

109162755840 has 288 divisors, whose sum is σ = 369472622400. Its totient is φ = 27419607040.

The previous prime is 109162755833. The next prime is 109162755887. The reversal of 109162755840 is 48557261901.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 109162755840.

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, 4553806 + ... + 4577714.

It is an arithmetic number, because the mean of its divisors is an integer number (1282891050).

Almost surely, 2109162755840 is an apocalyptic number.

109162755840 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 109162755840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184736311200).

109162755840 is an abundant number, since it is smaller than the sum of its proper divisors (260309866560).

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

109162755840 is a wasteful number, since it uses less digits than its factorization.

109162755840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24003 (or 23989 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 109162755840 in words is "one hundred nine billion, one hundred sixty-two million, seven hundred fifty-five thousand, eight hundred forty".