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113169408 = 21031117197
BaseRepresentation
bin1101011111011…
…01010000000000
321212221121020120
412233231100000
5212432410113
615121340240
72542631652
oct657552000
9255847216
10113169408
1158976940
1231a97680
131a5a4b61
141105c6d2
159e06a23
hex6bed400

113169408 has 176 divisors, whose sum is σ = 350184384. Its totient is φ = 32112640.

The previous prime is 113169403. The next prime is 113169439. The reversal of 113169408 is 804961311.

It is a tau number, because it is divible by the number of its divisors (176).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113169403) 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, 574366 + ... + 574562.

It is an arithmetic number, because the mean of its divisors is an integer number (1989684).

Almost surely, 2113169408 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 113169408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175092192).

113169408 is an abundant number, since it is smaller than the sum of its proper divisors (237014976).

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

113169408 is a wasteful number, since it uses less digits than its factorization.

113169408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 113169408 is about 10638.1111105309. Note that the first 5 decimals coincide. The cubic root of 113169408 is about 483.7002902803.

The spelling of 113169408 in words is "one hundred thirteen million, one hundred sixty-nine thousand, four hundred eight".