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22540344545 = 561277266797
BaseRepresentation
bin10100111111100000…
…100101110011100001
32011011212122010211202
4110333200211303201
5332130312011140
614204353450545
71425366524135
oct247740456341
964155563752
1022540344545
119617489524
124450870a55
132182a916a4
14113b8393c5
158bdcb5915
hex53f825ce1

22540344545 has 16 divisors (see below), whose sum is σ = 27591181968. Its totient is φ = 17672567040.

The previous prime is 22540344503. The next prime is 22540344581. The reversal of 22540344545 is 54544304522.

It can be written as a sum of positive squares in 8 ways, for example, as 1465434961 + 21074909584 = 38281^2 + 145172^2 .

It is not a de Polignac number, because 22540344545 - 26 = 22540344481 is a prime.

It is a super-2 number, since 2×225403445452 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22540344499 and 22540344508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48914 + ... + 217883.

It is an arithmetic number, because the mean of its divisors is an integer number (1724448873).

Almost surely, 222540344545 is an apocalyptic number.

It is an amenable number.

22540344545 is a deficient number, since it is larger than the sum of its proper divisors (5050837423).

22540344545 is a wasteful number, since it uses less digits than its factorization.

22540344545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267140.

The product of its (nonzero) digits is 384000, while the sum is 38.

The spelling of 22540344545 in words is "twenty-two billion, five hundred forty million, three hundred forty-four thousand, five hundred forty-five".

Divisors: 1 5 61 277 305 1385 16897 84485 266797 1333985 16274617 73902769 81373085 369513845 4508068909 22540344545