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31320322029979 = 3120812184122229
BaseRepresentation
bin1110001111100010101001…
…01010110011100110011011
311002220012020002112022001021
413013301110222303212123
513101123004414424404
6150340205102303311
76411550530436453
oct707612452634633
9132805202468037
1031320322029979
119a859682a3144
12361a108587b37
1314626558534a8
147a3ca98c6d63
15394aa7d7b454
hex1c7c54ab399b

31320322029979 has 16 divisors (see below), whose sum is σ = 32349127299840. Its totient is φ = 30292674048000.

The previous prime is 31320322029947. The next prime is 31320322030013. The reversal of 31320322029979 is 97992022302313.

It is a cyclic number.

It is not a de Polignac number, because 31320322029979 - 25 = 31320322029947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31320322029179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1408973637 + ... + 1408995865.

It is an arithmetic number, because the mean of its divisors is an integer number (2021820456240).

Almost surely, 231320322029979 is an apocalyptic number.

31320322029979 is a deficient number, since it is larger than the sum of its proper divisors (1028805269861).

31320322029979 is a wasteful number, since it uses less digits than its factorization.

31320322029979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46182.

The product of its (nonzero) digits is 2204496, while the sum is 52.

The spelling of 31320322029979 in words is "thirty-one trillion, three hundred twenty billion, three hundred twenty-two million, twenty-nine thousand, nine hundred seventy-nine".

Divisors: 1 31 2081 21841 22229 64511 677071 689099 45451121 46258549 485503589 1408984751 1434015019 15050611259 1010332968709 31320322029979