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42280313121 = 335334984659
BaseRepresentation
bin100111011000000110…
…100110000100100001
311001010120212110001000
4213120012212010201
51143042230004441
631231233502213
73024513506004
oct473006460441
9131116773030
1042280313121
1116a27153042
12823b711969
133caa623977
14209139353b
151176cba2b6
hex9d81a6121

42280313121 has 32 divisors (see below), whose sum is σ = 64002960000. Its totient is φ = 27575481024.

The previous prime is 42280313111. The next prime is 42280313183. The reversal of 42280313121 is 12131308224.

42280313121 is a `hidden beast` number, since 4 + 228 + 0 + 313 + 121 = 666.

It is not a de Polignac number, because 42280313121 - 213 = 42280304929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42280313111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457090 + ... + 541748.

It is an arithmetic number, because the mean of its divisors is an integer number (2000092500).

Almost surely, 242280313121 is an apocalyptic number.

It is an amenable number.

42280313121 is a deficient number, since it is larger than the sum of its proper divisors (21722646879).

42280313121 is a wasteful number, since it uses less digits than its factorization.

42280313121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85070 (or 85064 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 42280313121 in words is "forty-two billion, two hundred eighty million, three hundred thirteen thousand, one hundred twenty-one".

Divisors: 1 3 9 27 53 159 349 477 1047 1431 3141 9423 18497 55491 84659 166473 253977 499419 761931 2285793 4486927 13460781 29545991 40382343 88637973 121147029 265913919 797741757 1565937523 4697812569 14093437707 42280313121