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22730629 = 831371999
BaseRepresentation
bin101011010110…
…1011110000101
31120202211120011
41112231132011
521304340004
62131110221
7364131025
oct126553605
946684504
1022730629
1111915949
127742371
13492b29c
143039a85
151ee0004
hex15ad785

22730629 has 8 divisors (see below), whose sum is σ = 23184000. Its totient is φ = 22281696.

The previous prime is 22730627. The next prime is 22730633. The reversal of 22730629 is 92603722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22730629 - 21 = 22730627 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 22730629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22730623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10372 + ... + 12370.

It is an arithmetic number, because the mean of its divisors is an integer number (2898000).

Almost surely, 222730629 is an apocalyptic number.

It is an amenable number.

22730629 is a deficient number, since it is larger than the sum of its proper divisors (453371).

22730629 is a wasteful number, since it uses less digits than its factorization.

22730629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 22730629 is about 4767.6649420864. The cubic root of 22730629 is about 283.2721102627.

The spelling of 22730629 in words is "twenty-two million, seven hundred thirty thousand, six hundred twenty-nine".

Divisors: 1 83 137 1999 11371 165917 273863 22730629