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23490219 = 331252583
BaseRepresentation
bin101100110011…
…0111010101011
31122012102112010
41121212322223
522003141334
62155251003
7403443414
oct131467253
948172463
1023490219
1112294605
127a49a63
134b35c4c
14319680b
1520e00e9
hex1666eab

23490219 has 8 divisors (see below), whose sum is σ = 32330752. Its totient is φ = 15154920.

The previous prime is 23490217. The next prime is 23490241. The reversal of 23490219 is 91209432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23490219 - 21 = 23490217 is a prime.

It is a super-2 number, since 2×234902192 = 1103580777335922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23490217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126199 + ... + 126384.

It is an arithmetic number, because the mean of its divisors is an integer number (4041344).

Almost surely, 223490219 is an apocalyptic number.

23490219 is a deficient number, since it is larger than the sum of its proper divisors (8840533).

23490219 is a wasteful number, since it uses less digits than its factorization.

23490219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252617.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 23490219 is about 4846.6709193012. The cubic root of 23490219 is about 286.3929713003.

The spelling of 23490219 in words is "twenty-three million, four hundred ninety thousand, two hundred nineteen".

Divisors: 1 3 31 93 252583 757749 7830073 23490219