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22629071 = 131172741
BaseRepresentation
bin101011001010…
…0101011001111
31120120200020202
41112110223033
521243112241
62125004115
7363225653
oct126245317
946520222
1022629071
1111856613
1276b363b
1348c3caa
143010a63
151ebed9b
hex1594acf

22629071 has 4 divisors (see below), whose sum is σ = 22801944. Its totient is φ = 22456200.

The previous prime is 22629059. The next prime is 22629073. The reversal of 22629071 is 17092622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17092622 = 28546311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22629071 is a prime.

It is a super-3 number, since 3×226290713 (a number of 23 digits) contains 333 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 (22629073) 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, 86240 + ... + 86501.

It is an arithmetic number, because the mean of its divisors is an integer number (5700486).

Almost surely, 222629071 is an apocalyptic number.

22629071 is a deficient number, since it is larger than the sum of its proper divisors (172873).

22629071 is a wasteful number, since it uses less digits than its factorization.

22629071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172872.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 22629071 is about 4757.0023123812. The cubic root of 22629071 is about 282.8496039818.

The spelling of 22629071 in words is "twenty-two million, six hundred twenty-nine thousand, seventy-one".

Divisors: 1 131 172741 22629071