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22554001 = 139211769
BaseRepresentation
bin101011000001…
…0010110010001
31120102212021101
41112002112101
521233212001
62123224401
7362464051
oct126022621
946385241
1022554001
1111805178
127678101
134898a82
142dd1561
151ea7a01
hex1582591

22554001 has 8 divisors (see below), whose sum is σ = 22853600. Its totient is φ = 22256640.

The previous prime is 22553983. The next prime is 22554011. The reversal of 22554001 is 10045522.

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 22554001 - 27 = 22553873 is a prime.

It is a super-2 number, since 2×225540012 = 1017365922216002, which contains 22 as substring.

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 22554001.

It is not an unprimeable number, because it can be changed into a prime (22554011) 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, 28945 + ... + 29713.

It is an arithmetic number, because the mean of its divisors is an integer number (2856700).

Almost surely, 222554001 is an apocalyptic number.

It is an amenable number.

22554001 is a deficient number, since it is larger than the sum of its proper divisors (299599).

22554001 is a wasteful number, since it uses less digits than its factorization.

22554001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22554001 is about 4749.1052841562. The cubic root of 22554001 is about 282.5364810485.

Adding to 22554001 its reverse (10045522), we get a palindrome (32599523).

The spelling of 22554001 in words is "twenty-two million, five hundred fifty-four thousand, one".

Divisors: 1 139 211 769 29329 106891 162259 22554001