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31460943029 = 252112479549
BaseRepresentation
bin11101010011001101…
…111110010010110101
310000012120022111110012
4131103031332102311
51003413000134104
622241501110005
72162426413655
oct352315762265
9100176274405
1031460943029
111238497816a
126120258305
132c74c60b29
1417464a2365
15c4200ad6e
hex75337e4b5

31460943029 has 4 divisors (see below), whose sum is σ = 31473425100. Its totient is φ = 31448460960.

The previous prime is 31460943023. The next prime is 31460943133. The reversal of 31460943029 is 92034906413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92034906413 = 132769355619.

It can be written as a sum of positive squares in 2 ways, for example, as 9341222500 + 22119720529 = 96650^2 + 148727^2 .

It is a cyclic number.

It is not a de Polignac number, because 31460943029 - 24 = 31460943013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31460943023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6237254 + ... + 6242295.

It is an arithmetic number, because the mean of its divisors is an integer number (7868356275).

Almost surely, 231460943029 is an apocalyptic number.

It is an amenable number.

31460943029 is a deficient number, since it is larger than the sum of its proper divisors (12482071).

31460943029 is a wasteful number, since it uses less digits than its factorization.

31460943029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12482070.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 31460943029 in words is "thirty-one billion, four hundred sixty million, nine hundred forty-three thousand, twenty-nine".

Divisors: 1 2521 12479549 31460943029