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23980609 = 592832
BaseRepresentation
bin101101101111…
…0101001000001
31200010100012201
41123132221001
522114334414
62213553201
7410555212
oct133365101
950110181
1023980609
1112599a94
128045801
134c78213
143283409
15218a574
hex16dea41

23980609 has 9 divisors (see below), whose sum is σ = 24691393. Its totient is φ = 23290132.

The previous prime is 23980549. The next prime is 23980643. The reversal of 23980609 is 90608932.

The square root of 23980609 is 4897.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 23980609 - 217 = 23849537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23980309) 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 8 ways as a sum of consecutive naturals, for example, 288882 + ... + 288964.

Almost surely, 223980609 is an apocalyptic number.

23980609 is the 4897-th square number.

23980609 is the 2449-th centered octagonal number.

It is an amenable number.

23980609 is a deficient number, since it is larger than the sum of its proper divisors (710784).

23980609 is an frugal number, since it uses more digits than its factorization.

23980609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The cubic root of 23980609 is about 288.3722079594.

The spelling of 23980609 in words is "twenty-three million, nine hundred eighty thousand, six hundred nine".

Divisors: 1 59 83 3481 4897 6889 288923 406451 23980609