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4112640 = 28335717
BaseRepresentation
bin1111101100000100000000
321201221111000
433230010000
52023101030
6224052000
746646130
oct17540400
97657430
104112640
112359984
121464000
13b0cc1c
14790ac0
15563860
hex3ec100

4112640 has 288 divisors, whose sum is σ = 17660160. Its totient is φ = 884736.

The previous prime is 4112629. The next prime is 4112701. The reversal of 4112640 is 462114.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 241912 + ... + 241928.

It is an arithmetic number, because the mean of its divisors is an integer number (61320).

Almost surely, 24112640 is an apocalyptic number.

4112640 is a gapful number since it is divisible by the number (40) 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 4112640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8830080).

4112640 is an abundant number, since it is smaller than the sum of its proper divisors (13547520).

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

4112640 is a wasteful number, since it uses less digits than its factorization.

4112640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 4112640 is about 2027.9644967307. The cubic root of 4112640 is about 160.2163739243.

Adding to 4112640 its reverse (462114), we get a palindrome (4574754).

The spelling of 4112640 in words is "four million, one hundred twelve thousand, six hundred forty".