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23488389 = 3219137359
BaseRepresentation
bin101100110011…
…0011110000101
31122012100000100
41121212132011
522003112024
62155234313
7403435161
oct131463605
948170010
1023488389
11122931a1
127a48999
134b35172
143195ca1
1520de7c9
hex1666785

23488389 has 12 divisors (see below), whose sum is σ = 35713600. Its totient is φ = 14834664.

The previous prime is 23488379. The next prime is 23488393. The reversal of 23488389 is 98388432.

It is not a de Polignac number, because 23488389 - 25 = 23488357 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 (23488349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68509 + ... + 68850.

Almost surely, 223488389 is an apocalyptic number.

It is an amenable number.

23488389 is a deficient number, since it is larger than the sum of its proper divisors (12225211).

23488389 is a wasteful number, since it uses less digits than its factorization.

23488389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137384 (or 137381 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 23488389 is about 4846.4821262437. The cubic root of 23488389 is about 286.3855339814.

The spelling of 23488389 in words is "twenty-three million, four hundred eighty-eight thousand, three hundred eighty-nine".

Divisors: 1 3 9 19 57 171 137359 412077 1236231 2609821 7829463 23488389