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561006056108 = 221971103967023
BaseRepresentation
bin10000010100111101001…
…00010001001010101100
31222122001110212110112002
420022132210101022230
533142420022243413
61105420030431432
755350152540261
oct10123644211254
91878043773462
10561006056108
111a6a15325393
1290887962578
1340b97155824
141d21d55d268
15e8d6861958
hex829e9112ac

561006056108 has 24 divisors (see below), whose sum is σ = 1047987601920. Its totient is φ = 261996895440.

The previous prime is 561006056101. The next prime is 561006056161. The reversal of 561006056108 is 801650600165.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (561006056101) 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, 51978116 + ... + 51988907.

It is an arithmetic number, because the mean of its divisors is an integer number (43666150080).

Almost surely, 2561006056108 is an apocalyptic number.

It is an amenable number.

561006056108 is a deficient number, since it is larger than the sum of its proper divisors (486981545812).

561006056108 is a wasteful number, since it uses less digits than its factorization.

561006056108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103967117 (or 103967115 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 561006056108 in words is "five hundred sixty-one billion, six million, fifty-six thousand, one hundred eight".

Divisors: 1 2 4 19 38 71 76 142 284 1349 2698 5396 103967023 207934046 415868092 1975373437 3950746874 7381658633 7901493748 14763317266 29526634532 140251514027 280503028054 561006056108