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23140153 = 227101939
BaseRepresentation
bin101100001000…
…1011100111001
31121112122022201
41120101130321
521410441103
62143550201
7400455001
oct130213471
947478281
1023140153
11120755a3
1278bb361
134a427ca
143105001
15207151d
hex1611739

23140153 has 4 divisors (see below), whose sum is σ = 23242320. Its totient is φ = 23037988.

The previous prime is 23140123. The next prime is 23140163. The reversal of 23140153 is 35104132.

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 a de Polignac number, because none of the positive numbers 2k-23140153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23140153.

It is not an unprimeable number, because it can be changed into a prime (23140123) 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, 50743 + ... + 51196.

It is an arithmetic number, because the mean of its divisors is an integer number (5810580).

Almost surely, 223140153 is an apocalyptic number.

It is an amenable number.

23140153 is a deficient number, since it is larger than the sum of its proper divisors (102167).

23140153 is a wasteful number, since it uses less digits than its factorization.

23140153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102166.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 23140153 is about 4810.4212913216. The cubic root of 23140153 is about 284.9631757080.

Adding to 23140153 its reverse (35104132), we get a palindrome (58244285).

The spelling of 23140153 in words is "twenty-three million, one hundred forty thousand, one hundred fifty-three".

Divisors: 1 227 101939 23140153