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23272205 = 5112318397
BaseRepresentation
bin101100011000…
…1101100001101
31121210100110112
41120301230031
521424202310
62150445405
7401544665
oct130615415
947710415
1023272205
1112155830
127963865
134a8a948
14313b1a5
15209a705
hex1631b0d

23272205 has 16 divisors (see below), whose sum is σ = 31791744. Its totient is φ = 16188480.

The previous prime is 23272199. The next prime is 23272211. The reversal of 23272205 is 50227232.

It is an interprime number because it is at equal distance from previous prime (23272199) and next prime (23272211).

It is not a de Polignac number, because 23272205 - 212 = 23268109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7934 + ... + 10463.

It is an arithmetic number, because the mean of its divisors is an integer number (1986984).

Almost surely, 223272205 is an apocalyptic number.

It is an amenable number.

23272205 is a deficient number, since it is larger than the sum of its proper divisors (8519539).

23272205 is a wasteful number, since it uses less digits than its factorization.

23272205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18436.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 23272205 is about 4824.1273822319. The cubic root of 23272205 is about 285.5042064642.

Adding to 23272205 its reverse (50227232), we get a palindrome (73499437).

The spelling of 23272205 in words is "twenty-three million, two hundred seventy-two thousand, two hundred five".

Divisors: 1 5 11 23 55 115 253 1265 18397 91985 202367 423131 1011835 2115655 4654441 23272205