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1297408074 = 231775116937
BaseRepresentation
bin100110101010100…
…1110000001001010
310100102022011021220
41031111032001022
510124114024244
6332423542510
744102533554
oct11525160112
93312264256
101297408074
11606397986
123025baa36
13178a3b2b1
14c44484d4
1578d7c319
hex4d54e04a

1297408074 has 32 divisors (see below), whose sum is σ = 2751273216. Its totient is φ = 406464000.

The previous prime is 1297408067. The next prime is 1297408087. The reversal of 1297408074 is 4708047921.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68134 + ... + 85070.

It is an arithmetic number, because the mean of its divisors is an integer number (85977288).

Almost surely, 21297408074 is an apocalyptic number.

1297408074 is an abundant number, since it is smaller than the sum of its proper divisors (1453865142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1297408074 is a wasteful number, since it uses less digits than its factorization.

1297408074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17710.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 1297408074 is about 36019.5512742733. The cubic root of 1297408074 is about 1090.6670646786.

The spelling of 1297408074 in words is "one billion, two hundred ninety-seven million, four hundred eight thousand, seventy-four".

Divisors: 1 2 3 6 17 34 51 102 751 1502 2253 4506 12767 16937 25534 33874 38301 50811 76602 101622 287929 575858 863787 1727574 12719687 25439374 38159061 76318122 216234679 432469358 648704037 1297408074