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23247097 = 181128437
BaseRepresentation
bin101100010101…
…1100011111001
31121202002000121
41120223203321
521422401342
62150133241
7401411536
oct130534371
947662017
1023247097
1112138985
127951221
134a7c3a3
143131d8d
152093067
hex162b8f9

23247097 has 4 divisors (see below), whose sum is σ = 23375716. Its totient is φ = 23118480.

The previous prime is 23247073. The next prime is 23247113. The reversal of 23247097 is 79074232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 436921 + 22810176 = 661^2 + 4776^2 .

It is a cyclic number.

It is not a de Polignac number, because 23247097 - 215 = 23214329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23247197) 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, 64038 + ... + 64399.

It is an arithmetic number, because the mean of its divisors is an integer number (5843929).

Almost surely, 223247097 is an apocalyptic number.

It is an amenable number.

23247097 is a deficient number, since it is larger than the sum of its proper divisors (128619).

23247097 is a wasteful number, since it uses less digits than its factorization.

23247097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128618.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 23247097 is about 4821.5243440223. The cubic root of 23247097 is about 285.4014942497.

The spelling of 23247097 in words is "twenty-three million, two hundred forty-seven thousand, ninety-seven".

Divisors: 1 181 128437 23247097