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68380896 = 253712301
BaseRepresentation
bin1000001001101…
…10100011100000
311202200002221210
410010312203200
5120001142041
610441350120
71460141133
oct404664340
9152602853
1068380896
1135665641
121aa98340
131122288c
14912021a
15600b016
hex41368e0

68380896 has 24 divisors (see below), whose sum is σ = 179500104. Its totient is φ = 22793600.

The previous prime is 68380883. The next prime is 68380901. The reversal of 68380896 is 69808386.

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356055 + ... + 356246.

It is an arithmetic number, because the mean of its divisors is an integer number (7479171).

Almost surely, 268380896 is an apocalyptic number.

It is an amenable number.

68380896 is an abundant number, since it is smaller than the sum of its proper divisors (111119208).

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

68380896 is a wasteful number, since it uses less digits than its factorization.

68380896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712314 (or 712306 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 68380896 is about 8269.2742124082. The cubic root of 68380896 is about 408.9261926863.

The spelling of 68380896 in words is "sixty-eight million, three hundred eighty thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 712301 1424602 2136903 2849204 4273806 5698408 8547612 11396816 17095224 22793632 34190448 68380896