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68764396 = 2243399793
BaseRepresentation
bin1000001100101…
…00001011101100
311210101121000111
410012110023230
5120100430041
610453505404
71463326201
oct406241354
9153347014
1068764396
11358a7788
121b042264
13113282bc
1491bdca8
156084981
hex41942ec

68764396 has 12 divisors (see below), whose sum is σ = 123136552. Its totient is φ = 33582528.

The previous prime is 68764391. The next prime is 68764403. The reversal of 68764396 is 69346786.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (68764391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199725 + ... + 200068.

Almost surely, 268764396 is an apocalyptic number.

It is an amenable number.

68764396 is a deficient number, since it is larger than the sum of its proper divisors (54372156).

68764396 is a wasteful number, since it uses less digits than its factorization.

68764396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399840 (or 399838 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The square root of 68764396 is about 8292.4300419117. The cubic root of 68764396 is about 409.6892271205.

The spelling of 68764396 in words is "sixty-eight million, seven hundred sixty-four thousand, three hundred ninety-six".

Divisors: 1 2 4 43 86 172 399793 799586 1599172 17191099 34382198 68764396