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68770896 = 24331113409
BaseRepresentation
bin1000001100101…
…01110001010000
311210101220221020
410012111301100
5120101132041
610453555440
71463354145
oct406256120
9153356836
1068770896
1135901657
121b045b80
131132b24c
1491c23cc
156086866
hex4195c50

68770896 has 80 divisors (see below), whose sum is σ = 185464320. Its totient is φ = 21934080.

The previous prime is 68770879. The next prime is 68770903. The reversal of 68770896 is 69807786.

It is a happy number.

It is a super-2 number, since 2×687708962 = 9458872273285632, which contains 22 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, 167940 + ... + 168348.

It is an arithmetic number, because the mean of its divisors is an integer number (2318304).

Almost surely, 268770896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68770896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92732160).

68770896 is an abundant number, since it is smaller than the sum of its proper divisors (116693424).

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

68770896 is a wasteful number, since it uses less digits than its factorization.

68770896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 68770896 is about 8292.8219563668. The cubic root of 68770896 is about 409.7021354288.

The spelling of 68770896 in words is "sixty-eight million, seven hundred seventy thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 16 24 31 48 62 93 113 124 186 226 248 339 372 409 452 496 678 744 818 904 1227 1356 1488 1636 1808 2454 2712 3272 3503 4908 5424 6544 7006 9816 10509 12679 14012 19632 21018 25358 28024 38037 42036 46217 50716 56048 76074 84072 92434 101432 138651 152148 168144 184868 202864 277302 304296 369736 554604 608592 739472 1109208 1432727 2218416 2865454 4298181 5730908 8596362 11461816 17192724 22923632 34385448 68770896