Search a number
-
+
22970641 = 154314887
BaseRepresentation
bin101011110100…
…0000100010001
31121020000210111
41113220010101
521340030031
62140201321
7366150541
oct127500421
947200714
1022970641
1111a6a201
127839241
1349b35c5
14309d321
15203b1b1
hex15e8111

22970641 has 4 divisors (see below), whose sum is σ = 22987072. Its totient is φ = 22954212.

The previous prime is 22970627. The next prime is 22970663. The reversal of 22970641 is 14607922.

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 22970641 - 25 = 22970609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22970611) 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, 5901 + ... + 8986.

It is an arithmetic number, because the mean of its divisors is an integer number (5746768).

Almost surely, 222970641 is an apocalyptic number.

It is an amenable number.

22970641 is a deficient number, since it is larger than the sum of its proper divisors (16431).

22970641 is a wasteful number, since it uses less digits than its factorization.

22970641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16430.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 22970641 is about 4792.7696585586. The cubic root of 22970641 is about 284.2656419829.

The spelling of 22970641 in words is "twenty-two million, nine hundred seventy thousand, six hundred forty-one".

Divisors: 1 1543 14887 22970641