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23212254 = 2313793767
BaseRepresentation
bin101100010001…
…1000011011110
31121200022020010
41120203003132
521420243004
62145304050
7401205132
oct130430336
947608203
1023212254
111211478a
127935026
134a69580
1431233c2
152087a89
hex16230de

23212254 has 32 divisors (see below), whose sum is σ = 50641920. Its totient is φ = 7049952.

The previous prime is 23212249. The next prime is 23212271. The reversal of 23212254 is 45221232.

It is a self number, because there is not a number n which added to its sum of digits gives 23212254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4279 + ... + 8045.

It is an arithmetic number, because the mean of its divisors is an integer number (1582560).

Almost surely, 223212254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23212254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25320960).

23212254 is an abundant number, since it is smaller than the sum of its proper divisors (27429666).

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

23212254 is a wasteful number, since it uses less digits than its factorization.

23212254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864.

The product of its digits is 960, while the sum is 21.

The square root of 23212254 is about 4817.9097127281. The cubic root of 23212254 is about 285.2588353393.

Adding to 23212254 its reverse (45221232), we get a palindrome (68433486).

The spelling of 23212254 in words is "twenty-three million, two hundred twelve thousand, two hundred fifty-four".

Divisors: 1 2 3 6 13 26 39 78 79 158 237 474 1027 2054 3081 3767 6162 7534 11301 22602 48971 97942 146913 293826 297593 595186 892779 1785558 3868709 7737418 11606127 23212254