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23077681 = 1167173181
BaseRepresentation
bin101100000001…
…0001100110001
31121102110121221
41120002030301
521401441211
62142345041
7400104604
oct130021461
947373557
1023077681
1112032670
12788b181
134a20243
1430ca33b
15205cc71
hex1602331

23077681 has 16 divisors (see below), whose sum is σ = 25841088. Its totient is φ = 20433600.

The previous prime is 23077679. The next prime is 23077697. The reversal of 23077681 is 18677032.

It is not a de Polignac number, because 23077681 - 21 = 23077679 is a prime.

It is a super-2 number, since 2×230776812 = 1065158720675522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23077661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127411 + ... + 127591.

It is an arithmetic number, because the mean of its divisors is an integer number (1615068).

Almost surely, 223077681 is an apocalyptic number.

It is an amenable number.

23077681 is a deficient number, since it is larger than the sum of its proper divisors (2763407).

23077681 is a wasteful number, since it uses less digits than its factorization.

23077681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 23077681 is about 4803.9235006399. The cubic root of 23077681 is about 284.7065040554.

The spelling of 23077681 in words is "twenty-three million, seventy-seven thousand, six hundred eighty-one".

Divisors: 1 11 67 173 181 737 1903 1991 11591 12127 31313 127501 133397 344443 2097971 23077681