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23053251 = 3131953587
BaseRepresentation
bin101011111110…
…0001111000011
31121101020010010
41113330033003
521400201001
62142040003
7366643434
oct127741703
947336103
1023053251
1112016281
127879003
134a120a0
1430c148b
1520558d6
hex15fc3c3

23053251 has 32 divisors (see below), whose sum is σ = 35562240. Its totient is φ = 13163904.

The previous prime is 23053237. The next prime is 23053259. The reversal of 23053251 is 15235032.

It is not a de Polignac number, because 23053251 - 215 = 23020483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23053259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38980 + ... + 39566.

It is an arithmetic number, because the mean of its divisors is an integer number (1111320).

Almost surely, 223053251 is an apocalyptic number.

23053251 is a deficient number, since it is larger than the sum of its proper divisors (12508989).

23053251 is a wasteful number, since it uses less digits than its factorization.

23053251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 23053251 is about 4801.3801140922. The cubic root of 23053251 is about 284.6060052855.

Adding to 23053251 its reverse (15235032), we get a palindrome (38288283).

The spelling of 23053251 in words is "twenty-three million, fifty-three thousand, two hundred fifty-one".

Divisors: 1 3 13 19 39 53 57 159 247 587 689 741 1007 1761 2067 3021 7631 11153 13091 22893 31111 33459 39273 93333 144989 404443 434967 591109 1213329 1773327 7684417 23053251