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31426545274 = 231350202149
BaseRepresentation
bin11101010001001010…
…110000011001111010
310000010011120220121021
4131101022300121322
51003330143422044
622234231533054
72161531140655
oct352112603172
9100104526537
1031426545274
1112367513673
12611082a18a
132c6aaa9227
141741aaa89c
15c3deb3e84
hex7512b067a

31426545274 has 8 divisors (see below), whose sum is σ = 47290425300. Its totient is φ = 15663070176.

The previous prime is 31426545251. The next prime is 31426545289. The reversal of 31426545274 is 47254562413.

It can be written as a sum of positive squares in 2 ways, for example, as 17757428049 + 13669117225 = 133257^2 + 116915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 31426545274.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25100449 + ... + 25101700.

Almost surely, 231426545274 is an apocalyptic number.

31426545274 is a deficient number, since it is larger than the sum of its proper divisors (15863880026).

31426545274 is a wasteful number, since it uses less digits than its factorization.

31426545274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50202464.

The product of its digits is 806400, while the sum is 43.

The spelling of 31426545274 in words is "thirty-one billion, four hundred twenty-six million, five hundred forty-five thousand, two hundred seventy-four".

Divisors: 1 2 313 626 50202149 100404298 15713272637 31426545274