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68762880 = 2832547127
BaseRepresentation
bin1000001100100…
…11110100000000
311210101111221100
410012103310000
5120100403010
610453454400
71463321604
oct406236400
9153344840
1068762880
11358a662a
121b041400
13113276c4
1491bd504
1560842c0
hex4193d00

68762880 has 216 divisors, whose sum is σ = 244887552. Its totient is φ = 17805312.

The previous prime is 68762879. The next prime is 68762899. The reversal of 68762880 is 8826786.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 541377 + ... + 541503.

Almost surely, 268762880 is an apocalyptic number.

68762880 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 68762880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122443776).

68762880 is an abundant number, since it is smaller than the sum of its proper divisors (176124672).

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

68762880 is a wasteful number, since it uses less digits than its factorization.

68762880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 68762880 is about 8292.3386327381. The cubic root of 68762880 is about 409.6862163889.

The spelling of 68762880 in words is "sixty-eight million, seven hundred sixty-two thousand, eight hundred eighty".