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2042661015 = 325127357421
BaseRepresentation
bin111100111000000…
…1000100010010111
312021100121221010200
41321300020202113
513140410123030
6534405151543
7101422221633
oct17160104227
95240557120
102042661015
119590354aa
124900bb5b3
13267263175
14155401dc3
15be4dcd60
hex79c08897

2042661015 has 24 divisors (see below), whose sum is σ = 3568501248. Its totient is φ = 1080838080.

The previous prime is 2042661013. The next prime is 2042661029. The reversal of 2042661015 is 5101662402.

2042661015 is a `hidden beast` number, since 2 + 0 + 42 + 6 + 610 + 1 + 5 = 666.

It is not a de Polignac number, because 2042661015 - 21 = 2042661013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2042661015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042661013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172996 + ... + 184425.

It is an arithmetic number, because the mean of its divisors is an integer number (148687552).

Almost surely, 22042661015 is an apocalyptic number.

2042661015 is a deficient number, since it is larger than the sum of its proper divisors (1525840233).

2042661015 is a wasteful number, since it uses less digits than its factorization.

2042661015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357559 (or 357556 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2042661015 is about 45195.8074936160. The cubic root of 2042661015 is about 1268.8163512422.

The spelling of 2042661015 in words is "two billion, forty-two million, six hundred sixty-one thousand, fifteen".

Divisors: 1 3 5 9 15 45 127 381 635 1143 1905 5715 357421 1072263 1787105 3216789 5361315 16083945 45392467 136177401 226962335 408532203 680887005 2042661015