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68544892 = 22132814691
BaseRepresentation
bin1000001010111…
…10100101111100
311202222102220201
410011132211330
5120021414032
610445053244
71461423223
oct405364574
9152872821
1068544892
1135767879
121ab57224
131127c410
149163cba
15603e8e7
hex415e97c

68544892 has 24 divisors (see below), whose sum is σ = 129668112. Its totient is φ = 31516800.

The previous prime is 68544887. The next prime is 68544943. The reversal of 68544892 is 29844586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12267 + ... + 16957.

It is an arithmetic number, because the mean of its divisors is an integer number (5402838).

Almost surely, 268544892 is an apocalyptic number.

It is an amenable number.

68544892 is a deficient number, since it is larger than the sum of its proper divisors (61123220).

68544892 is a wasteful number, since it uses less digits than its factorization.

68544892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4989 (or 4987 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 68544892 is about 8279.1842593338. The cubic root of 68544892 is about 409.2528371341.

The spelling of 68544892 in words is "sixty-eight million, five hundred forty-four thousand, eight hundred ninety-two".

Divisors: 1 2 4 13 26 52 281 562 1124 3653 4691 7306 9382 14612 18764 60983 121966 243932 1318171 2636342 5272684 17136223 34272446 68544892