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68854932 = 223229101653
BaseRepresentation
bin1000001101010…
…10010010010100
311210120012012200
410012222102110
5120111324212
610455444500
71464154146
oct406522224
9153505180
1068854932
1135959803
121b086730
131135a583
149204c96
1560a16dc
hex41aa494

68854932 has 72 divisors (see below), whose sum is σ = 182112840. Its totient is φ = 21907200.

The previous prime is 68854921. The next prime is 68854957. The reversal of 68854932 is 23945886.

It can be written as a sum of positive squares in 4 ways, for example, as 19236996 + 49617936 = 4386^2 + 7044^2 .

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, 105118 + ... + 105770.

It is an arithmetic number, because the mean of its divisors is an integer number (2529345).

Almost surely, 268854932 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 68854932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91056420).

68854932 is an abundant number, since it is smaller than the sum of its proper divisors (113257908).

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

68854932 is a wasteful number, since it uses less digits than its factorization.

68854932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 788 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 68854932 is about 8297.8872009687. The cubic root of 68854932 is about 409.8689487958.

The spelling of 68854932 in words is "sixty-eight million, eight hundred fifty-four thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 29 36 58 87 101 116 174 202 261 303 348 404 522 606 653 909 1044 1212 1306 1818 1959 2612 2929 3636 3918 5858 5877 7836 8787 11716 11754 17574 18937 23508 26361 35148 37874 52722 56811 65953 75748 105444 113622 131906 170433 197859 227244 263812 340866 395718 593577 681732 791436 1187154 1912637 2374308 3825274 5737911 7650548 11475822 17213733 22951644 34427466 68854932