Search a number
-
+
23140141 = 107216263
BaseRepresentation
bin101100001000…
…1011100101101
31121112122022021
41120101130231
521410441031
62143550141
7400454653
oct130213455
947478267
1023140141
1112075592
1278bb351
134a427bb
143104dd3
152071511
hex161172d

23140141 has 4 divisors (see below), whose sum is σ = 23356512. Its totient is φ = 22923772.

The previous prime is 23140123. The next prime is 23140163. The reversal of 23140141 is 14104132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23140141 - 25 = 23140109 is a prime.

It is a super-2 number, since 2×231401412 = 1070932250999762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23140241) 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, 108025 + ... + 108238.

It is an arithmetic number, because the mean of its divisors is an integer number (5839128).

Almost surely, 223140141 is an apocalyptic number.

It is an amenable number.

23140141 is a deficient number, since it is larger than the sum of its proper divisors (216371).

23140141 is a wasteful number, since it uses less digits than its factorization.

23140141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216370.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 23140141 is about 4810.4200440294. The cubic root of 23140141 is about 284.9631264493.

Adding to 23140141 its reverse (14104132), we get a palindrome (37244273).

The spelling of 23140141 in words is "twenty-three million, one hundred forty thousand, one hundred forty-one".

Divisors: 1 107 216263 23140141