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31232012420204 = 2213956172684209
BaseRepresentation
bin1110001100111110001010…
…00000011000010001101100
311002120202021122102022101022
413012133011000120101230
513043201130134421304
6150231442145033312
76402303245232341
oct706370500302154
9132522248368338
1031232012420204
119a51470881272
123604b81925838
131457220cc471b
1479d8cd2cc7c8
1539263a105ebe
hex1c67c501846c

31232012420204 has 12 divisors (see below), whose sum is σ = 55049230525800. Its totient is φ = 15503660841408.

The previous prime is 31232012420137. The next prime is 31232012420209. The reversal of 31232012420204 is 40202421023213.

It is not an unprimeable number, because it can be changed into a prime (31232012420209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28086341549 + ... + 28086342660.

It is an arithmetic number, because the mean of its divisors is an integer number (4587435877150).

Almost surely, 231232012420204 is an apocalyptic number.

It is an amenable number.

31232012420204 is a deficient number, since it is larger than the sum of its proper divisors (23817218105596).

31232012420204 is a wasteful number, since it uses less digits than its factorization.

31232012420204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56172684352 (or 56172684350 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31232012420204 its reverse (40202421023213), we get a palindrome (71434433443417).

The spelling of 31232012420204 in words is "thirty-one trillion, two hundred thirty-two billion, twelve million, four hundred twenty thousand, two hundred four".

Divisors: 1 2 4 139 278 556 56172684209 112345368418 224690736836 7808003105051 15616006210102 31232012420204