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1297160893950 = 23528647739293
BaseRepresentation
bin10010111000000100110…
…100000111010111111110
311121000012101001220220020
4102320010310013113332
5132223041142101300
62431524003433010
7162500566450305
oct22700464072776
94530171056806
101297160893950
11460139564859
1218b494685766
1395424b5752c
1446ad64a543c
1523b1ea638a0
hex12e04d075fe

1297160893950 has 24 divisors (see below), whose sum is σ = 3216959017368. Its totient is φ = 345909571680.

The previous prime is 1297160893883. The next prime is 1297160893957. The reversal of 1297160893950 is 593980617921.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297160893957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4323869497 + ... + 4323869796.

It is an arithmetic number, because the mean of its divisors is an integer number (134039959057).

Almost surely, 21297160893950 is an apocalyptic number.

1297160893950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1297160893950 is an abundant number, since it is smaller than the sum of its proper divisors (1919798123418).

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

1297160893950 is a wasteful number, since it uses less digits than its factorization.

1297160893950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8647739308 (or 8647739303 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 60.

The spelling of 1297160893950 in words is "one trillion, two hundred ninety-seven billion, one hundred sixty million, eight hundred ninety-three thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 8647739293 17295478586 25943217879 43238696465 51886435758 86477392930 129716089395 216193482325 259432178790 432386964650 648580446975 1297160893950