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68799589 = 193621031
BaseRepresentation
bin1000001100111…
…00110001100101
311210110101021221
410012130301211
5120103041324
610454340341
71463533615
oct406346145
9153411257
1068799589
1135921171
121b05a6b1
131133b321
1491cca45
1560900e4
hex419cc65

68799589 has 4 divisors (see below), whose sum is σ = 72420640. Its totient is φ = 65178540.

The previous prime is 68799569. The next prime is 68799607. The reversal of 68799589 is 98599786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68799589 - 25 = 68799557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68799559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1810497 + ... + 1810534.

It is an arithmetic number, because the mean of its divisors is an integer number (18105160).

Almost surely, 268799589 is an apocalyptic number.

It is an amenable number.

68799589 is a deficient number, since it is larger than the sum of its proper divisors (3621051).

68799589 is a wasteful number, since it uses less digits than its factorization.

68799589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3621050.

The product of its digits is 9797760, while the sum is 61.

The square root of 68799589 is about 8294.5517660691. The cubic root of 68799589 is about 409.7591069557.

The spelling of 68799589 in words is "sixty-eight million, seven hundred ninety-nine thousand, five hundred eighty-nine".

Divisors: 1 19 3621031 68799589