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23255973 = 3213198769
BaseRepresentation
bin101100010110…
…1101110100101
31121202112012100
41120231232211
521423142343
62150242313
7401446446
oct130555645
947675170
1023255973
1112144614
127956399
134a83440
1431352cd
1520959d3
hex162dba5

23255973 has 12 divisors (see below), whose sum is σ = 36176140. Its totient is φ = 14311296.

The previous prime is 23255959. The next prime is 23255977. The reversal of 23255973 is 37955232.

23255973 is a `hidden beast` number, since 2 + 32 + 559 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2762244 + 20493729 = 1662^2 + 4527^2 .

It is not a de Polignac number, because 23255973 - 28 = 23255717 is a prime.

It is a super-3 number, since 3×232559733 (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23255977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99268 + ... + 99501.

Almost surely, 223255973 is an apocalyptic number.

It is an amenable number.

23255973 is a deficient number, since it is larger than the sum of its proper divisors (12920167).

23255973 is a wasteful number, since it uses less digits than its factorization.

23255973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198788 (or 198785 counting only the distinct ones).

The product of its digits is 56700, while the sum is 36.

The square root of 23255973 is about 4822.4447119692. Note that the first 3 decimals coincide. The cubic root of 23255973 is about 285.4378127820.

The spelling of 23255973 in words is "twenty-three million, two hundred fifty-five thousand, nine hundred seventy-three".

Divisors: 1 3 9 13 39 117 198769 596307 1788921 2583997 7751991 23255973