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68936577 = 3109720947
BaseRepresentation
bin1000001101111…
…10001110000001
311210201100012120
410012332032001
5120121432302
610501314453
71464644163
oct406761601
9153640176
1068936577
1135a05086
121b105a29
1311388798
149226933
1560ba9bc
hex41be381

68936577 has 8 divisors (see below), whose sum is σ = 92003616. Its totient is φ = 45913632.

The previous prime is 68936573. The next prime is 68936597. The reversal of 68936577 is 77563986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68936577 - 22 = 68936573 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68936573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7183 + ... + 13764.

It is an arithmetic number, because the mean of its divisors is an integer number (11500452).

Almost surely, 268936577 is an apocalyptic number.

It is an amenable number.

68936577 is a deficient number, since it is larger than the sum of its proper divisors (23067039).

68936577 is a wasteful number, since it uses less digits than its factorization.

68936577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22047.

The product of its digits is 1905120, while the sum is 51.

The square root of 68936577 is about 8302.8053692713. The cubic root of 68936577 is about 410.0308860333.

The spelling of 68936577 in words is "sixty-eight million, nine hundred thirty-six thousand, five hundred seventy-seven".

Divisors: 1 3 1097 3291 20947 62841 22978859 68936577