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23053487 = 71324697
BaseRepresentation
bin101011111110…
…0010010101111
31121101020102212
41113330102233
521400202422
62142041035
7366644222
oct127742257
947336385
1023053487
1112016476
12787917b
134a12222
1430c15b9
1520559e2
hex15fc4af

23053487 has 4 divisors (see below), whose sum is σ = 23378256. Its totient is φ = 22728720.

The previous prime is 23053423. The next prime is 23053493. The reversal of 23053487 is 78435032.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23053487 - 26 = 23053423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23053087) 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, 162278 + ... + 162419.

It is an arithmetic number, because the mean of its divisors is an integer number (5844564).

Almost surely, 223053487 is an apocalyptic number.

23053487 is a deficient number, since it is larger than the sum of its proper divisors (324769).

23053487 is an equidigital number, since it uses as much as digits as its factorization.

23053487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324768.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 23053487 is about 4801.4046902964. The cubic root of 23053487 is about 284.6069764687.

The spelling of 23053487 in words is "twenty-three million, fifty-three thousand, four hundred eighty-seven".

Divisors: 1 71 324697 23053487