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68782494 = 23111377607
BaseRepresentation
bin1000001100110…
…00100110011110
311210102111211210
410012120212132
5120102014434
610454125250
71463433024
oct406304636
9153374753
1068782494
113590a340
121b050826
1311333601
1491c6714
156089ee9
hex419899e

68782494 has 32 divisors (see below), whose sum is σ = 151186176. Its totient is φ = 20688320.

The previous prime is 68782487. The next prime is 68782501. The reversal of 68782494 is 49428786.

It is an interprime number because it is at equal distance from previous prime (68782487) and next prime (68782501).

It is a super-3 number, since 3×687824943 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5239 + ... + 12845.

It is an arithmetic number, because the mean of its divisors is an integer number (4724568).

Almost surely, 268782494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68782494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75593088).

68782494 is an abundant number, since it is smaller than the sum of its proper divisors (82403682).

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

68782494 is a wasteful number, since it uses less digits than its factorization.

68782494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7760.

The product of its digits is 774144, while the sum is 48.

The square root of 68782494 is about 8293.5212063393. The cubic root of 68782494 is about 409.7251658024.

The spelling of 68782494 in words is "sixty-eight million, seven hundred eighty-two thousand, four hundred ninety-four".

Divisors: 1 2 3 6 11 22 33 66 137 274 411 822 1507 3014 4521 7607 9042 15214 22821 45642 83677 167354 251031 502062 1042159 2084318 3126477 6252954 11463749 22927498 34391247 68782494