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31245076474 = 231513495749
BaseRepresentation
bin11101000110010110…
…100000011111111010
32222122112010100012121
4131012112200133322
51002442214421344
622204230231454
72154165524263
oct350626403772
988575110177
1031245076474
1112284038457
12607bab558a
132c3c30c941
14172594d96a
15c2d0ba684
hex7465a07fa

31245076474 has 8 divisors (see below), whose sum is σ = 46869196500. Its totient is φ = 15622010976.

The previous prime is 31245076451. The next prime is 31245076477. The reversal of 31245076474 is 47467054213.

It can be written as a sum of positive squares in 2 ways, for example, as 29603611249 + 1641465225 = 172057^2 + 40515^2 .

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

It is a super-2 number, since 2×312450764742 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31245076474.

It is not an unprimeable number, because it can be changed into a prime (31245076477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184849 + ... + 310900.

Almost surely, 231245076474 is an apocalyptic number.

31245076474 is a deficient number, since it is larger than the sum of its proper divisors (15624120026).

31245076474 is a wasteful number, since it uses less digits than its factorization.

31245076474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527264.

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 31245076474 in words is "thirty-one billion, two hundred forty-five million, seventy-six thousand, four hundred seventy-four".

Divisors: 1 2 31513 63026 495749 991498 15622538237 31245076474