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31144004212401 = 3213162297424027
BaseRepresentation
bin1110001010011010001110…
…10011101101011010110001
311002021100010012110010111100
413011031013103231122301
513040230410034244101
6150123205155435013
76363036312634203
oct705150723553261
9132240105403440
1031144004212401
119a18109501133
1235ababbbb5a69
13144bb36a34912
14799540b50773
153901d8a69e86
hex1c53474ed6b1

31144004212401 has 24 divisors (see below), whose sum is σ = 45330021326304. Its totient is φ = 20603796482880.

The previous prime is 31144004212369. The next prime is 31144004212421. The reversal of 31144004212401 is 10421240044113.

31144004212401 is a `hidden beast` number, since 3 + 1 + 1 + 4 + 40 + 0 + 4 + 212 + 401 = 666.

It is not a de Polignac number, because 31144004212401 - 25 = 31144004212369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31144004212421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73236150 + ... + 73660176.

It is an arithmetic number, because the mean of its divisors is an integer number (1888750888596).

Almost surely, 231144004212401 is an apocalyptic number.

It is an amenable number.

31144004212401 is a deficient number, since it is larger than the sum of its proper divisors (14186017113903).

31144004212401 is a wasteful number, since it uses less digits than its factorization.

31144004212401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486461 (or 486458 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 31144004212401 its reverse (10421240044113), we get a palindrome (41565244256514).

The spelling of 31144004212401 in words is "thirty-one trillion, one hundred forty-four billion, four million, two hundred twelve thousand, four hundred one".

Divisors: 1 3 9 131 393 1179 62297 186891 424027 560673 1272081 3816243 8160907 24482721 55547537 73448163 166642611 499927833 26415610019 79246830057 237740490171 3460444912489 10381334737467 31144004212401