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23230142 = 2136197151
BaseRepresentation
bin101100010011…
…1011010111110
31121201012202122
41120213122332
521421331032
62145522542
7401311235
oct130473276
947635678
1023230142
1112127171
127943452
134a74760
143129b1c
15208d012
hex16276be

23230142 has 32 divisors (see below), whose sum is σ = 38789184. Its totient is φ = 10368000.

The previous prime is 23230139. The next prime is 23230147. The reversal of 23230142 is 24103232.

It is a self number, because there is not a number n which added to its sum of digits gives 23230142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23230147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153767 + ... + 153917.

It is an arithmetic number, because the mean of its divisors is an integer number (1212162).

Almost surely, 223230142 is an apocalyptic number.

23230142 is a deficient number, since it is larger than the sum of its proper divisors (15559042).

23230142 is a wasteful number, since it uses less digits than its factorization.

23230142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23230142 is about 4819.7657619432. The cubic root of 23230142 is about 285.3320926204.

Adding to 23230142 its reverse (24103232), we get a palindrome (47333374).

The spelling of 23230142 in words is "twenty-three million, two hundred thirty thousand, one hundred forty-two".

Divisors: 1 2 13 26 61 97 122 151 194 302 793 1261 1586 1963 2522 3926 5917 9211 11834 14647 18422 29294 76921 119743 153842 190411 239486 380822 893467 1786934 11615071 23230142