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23889950 = 25274199
BaseRepresentation
bin101101100100…
…0100000011110
31122221201211222
41123020200132
522103434300
62212013342
7410030000
oct133104036
948851758
1023889950
1112537967
128001252
134c45b86
14325c370
15216d785
hex16c881e

23889950 has 60 divisors (see below), whose sum is σ = 52098600. Its totient is φ = 8149680.

The previous prime is 23889937. The next prime is 23889953. The reversal of 23889950 is 5998832.

It is a super-2 number, since 2×238899502 = 1141459422005000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23889953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 119951 + ... + 120149.

It is an arithmetic number, because the mean of its divisors is an integer number (868310).

Almost surely, 223889950 is an apocalyptic number.

23889950 is an abundant number, since it is smaller than the sum of its proper divisors (28208650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23889950 is an equidigital number, since it uses as much as digits as its factorization.

23889950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 23889950 is about 4887.7346490987. The cubic root of 23889950 is about 288.0083507738.

The spelling of 23889950 in words is "twenty-three million, eight hundred eighty-nine thousand, nine hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 175 199 245 343 350 398 490 686 995 1225 1393 1715 1990 2401 2450 2786 3430 4802 4975 6965 8575 9751 9950 12005 13930 17150 19502 24010 34825 48755 60025 68257 69650 97510 120050 136514 243775 341285 477799 487550 682570 955598 1706425 2388995 3412850 4777990 11944975 23889950