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68697212 = 2217174303
BaseRepresentation
bin1000001100000…
…11110001111100
311210021011212012
410012003301330
5120041302322
610452230352
71462626263
oct406036174
9153234765
1068697212
1135861261
121b00b3b8
131130384c
1491a35da
15606eae2
hex4183c7c

68697212 has 6 divisors (see below), whose sum is σ = 120220128. Its totient is φ = 34348604.

The previous prime is 68697203. The next prime is 68697229. The reversal of 68697212 is 21279686.

It is a self number, because there is not a number n which added to its sum of digits gives 68697212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8587148 + ... + 8587155.

It is an arithmetic number, because the mean of its divisors is an integer number (20036688).

Almost surely, 268697212 is an apocalyptic number.

It is an amenable number.

68697212 is a deficient number, since it is larger than the sum of its proper divisors (51522916).

68697212 is a wasteful number, since it uses less digits than its factorization.

68697212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17174307 (or 17174305 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 68697212 is about 8288.3781284398. The cubic root of 68697212 is about 409.5557591657. Note that the first 3 decimals are identical.

The spelling of 68697212 in words is "sixty-eight million, six hundred ninety-seven thousand, two hundred twelve".

Divisors: 1 2 4 17174303 34348606 68697212