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31444123233241 = 31232720211481
BaseRepresentation
bin1110010011001001001111…
…10010111010101111011001
311010100000210000100001010201
413021210213302322233121
513110140031021430431
6150513121503542201
76423522454342225
oct711444762725731
9133300700301121
1031444123233241
11a023417900564
12363a0b92ba961
131471225406854
147a9c919d5785
15397e018d9461
hex1c9927cbabd9

31444123233241 has 6 divisors (see below), whose sum is σ = 32491170001626. Its totient is φ = 30429796676400.

The previous prime is 31444123233157. The next prime is 31444123233247. The reversal of 31444123233241 is 14233232144413.

It can be written as a sum of positive squares in only one way, i.e., 29142409453641 + 2301713779600 = 5398371^2 + 1517140^2 .

It is not a de Polignac number, because 31444123233241 - 221 = 31444121136089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31444123233241.

It is not an unprimeable number, because it can be changed into a prime (31444123233247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16360104780 + ... + 16360106701.

It is an arithmetic number, because the mean of its divisors is an integer number (5415195000271).

Almost surely, 231444123233241 is an apocalyptic number.

31444123233241 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31444123233241 is a deficient number, since it is larger than the sum of its proper divisors (1047046768385).

31444123233241 is an equidigital number, since it uses as much as digits as its factorization.

31444123233241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32720211543 (or 32720211512 counting only the distinct ones).

The product of its digits is 165888, while the sum is 37.

Adding to 31444123233241 its reverse (14233232144413), we get a palindrome (45677355377654).

The spelling of 31444123233241 in words is "thirty-one trillion, four hundred forty-four billion, one hundred twenty-three million, two hundred thirty-three thousand, two hundred forty-one".

Divisors: 1 31 961 32720211481 1014326555911 31444123233241