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23690419 = 29816911
BaseRepresentation
bin101101001011…
…1110010110011
31122120121010221
41122113302303
522031043134
62203433511
7405236164
oct132276263
948517127
1023690419
1112410a65
127b25897
134ba60cc
14320976b
15212e5b4
hex1697cb3

23690419 has 4 divisors (see below), whose sum is σ = 24507360. Its totient is φ = 22873480.

The previous prime is 23690399. The next prime is 23690431. The reversal of 23690419 is 91409632.

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 23690419 - 215 = 23657651 is a prime.

It is a super-2 number, since 2×236904192 = 1122471904791122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23690519) 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, 408427 + ... + 408484.

It is an arithmetic number, because the mean of its divisors is an integer number (6126840).

Almost surely, 223690419 is an apocalyptic number.

23690419 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

23690419 is a deficient number, since it is larger than the sum of its proper divisors (816941).

23690419 is an equidigital number, since it uses as much as digits as its factorization.

23690419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816940.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 23690419 is about 4867.2804521622. The cubic root of 23690419 is about 287.2042842177.

The spelling of 23690419 in words is "twenty-three million, six hundred ninety thousand, four hundred nineteen".

Divisors: 1 29 816911 23690419