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31434104421 = 323492678269
BaseRepresentation
bin11101010001100111…
…100101111001100101
310000010200210221210200
4131101213211321211
51003334112320141
622235101541113
72161652323206
oct352147457145
9100120727720
1031434104421
11123708069a5
126113274799
132c6c524ab5
141742ab75ad
15c3e9a8ab6
hex7519e5e65

31434104421 has 6 divisors (see below), whose sum is σ = 45404817510. Its totient is φ = 20956069608.

The previous prime is 31434104417. The next prime is 31434104447. The reversal of 31434104421 is 12440143413.

31434104421 is a `hidden beast` number, since 314 + 341 + 0 + 4 + 4 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17293565025 + 14140539396 = 131505^2 + 118914^2 .

It is not a de Polignac number, because 31434104421 - 22 = 31434104417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31434104491) 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, 1746339126 + ... + 1746339143.

It is an arithmetic number, because the mean of its divisors is an integer number (7567469585).

Almost surely, 231434104421 is an apocalyptic number.

It is an amenable number.

31434104421 is a deficient number, since it is larger than the sum of its proper divisors (13970713089).

31434104421 is a wasteful number, since it uses less digits than its factorization.

31434104421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3492678275 (or 3492678272 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 31434104421 its reverse (12440143413), we get a palindrome (43874247834).

The spelling of 31434104421 in words is "thirty-one billion, four hundred thirty-four million, one hundred four thousand, four hundred twenty-one".

Divisors: 1 3 9 3492678269 10478034807 31434104421