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68604480 = 2632574183
BaseRepresentation
bin1000001011011…
…01001001000000
311210002110122200
410011231021000
5120030320410
610450233200
71462062030
oct405551100
9153073580
1068604480
11357a861a
121ab85800
13112a0589
14917b8c0
1560523c0
hex416d240

68604480 has 336 divisors, whose sum is σ = 279586944. Its totient is φ = 15114240.

The previous prime is 68604467. The next prime is 68604509. The reversal of 68604480 is 8440686.

68604480 is a `hidden beast` number, since 6 + 8 + 604 + 48 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 826519 + ... + 826601.

It is an arithmetic number, because the mean of its divisors is an integer number (832104).

Almost surely, 268604480 is an apocalyptic number.

68604480 is a gapful number since it is divisible by the number (60) 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 68604480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139793472).

68604480 is an abundant number, since it is smaller than the sum of its proper divisors (210982464).

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

68604480 is a wasteful number, since it uses less digits than its factorization.

68604480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 68604480 is about 8282.7821412856. The cubic root of 68604480 is about 409.3713944480.

The spelling of 68604480 in words is "sixty-eight million, six hundred four thousand, four hundred eighty".