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23197077 = 332573343
BaseRepresentation
bin101100001111…
…1010110010101
31121122112102000
41120133112111
521414301302
62145105513
7401112651
oct130372625
947575360
1023197077
1112104342
127928299
134a626a7
14311ba61
15208331c
hex161f595

23197077 has 16 divisors (see below), whose sum is σ = 34510080. Its totient is φ = 15399936.

The previous prime is 23197067. The next prime is 23197117. The reversal of 23197077 is 77079132.

It is not a de Polignac number, because 23197077 - 28 = 23196821 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23197037) 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, 5268 + ... + 8610.

It is an arithmetic number, because the mean of its divisors is an integer number (2156880).

Almost surely, 223197077 is an apocalyptic number.

23197077 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

23197077 is a deficient number, since it is larger than the sum of its proper divisors (11313003).

23197077 is a wasteful number, since it uses less digits than its factorization.

23197077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609 (or 3603 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 23197077 is about 4816.3343945370. The cubic root of 23197077 is about 285.1966509825.

The spelling of 23197077 in words is "twenty-three million, one hundred ninety-seven thousand, seventy-seven".

Divisors: 1 3 9 27 257 771 2313 3343 6939 10029 30087 90261 859151 2577453 7732359 23197077