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31350005313 = 311343182587
BaseRepresentation
bin11101001100100110…
…110001111001000001
32222220211120021111220
4131030212301321001
51003201100132223
622222455225253
72156611435254
oct351446617101
988824507456
1031350005313
1112328296000
1260ab078229
132c57c8aa03
14173586509b
15c373e56e3
hex74c9b1e41

31350005313 has 32 divisors (see below), whose sum is σ = 47046354432. Its totient is φ = 18558041040.

The previous prime is 31350005257. The next prime is 31350005327.

31350005313 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31350005313 - 213 = 31349997121 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31350005383) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 80406 + ... + 262992.

It is an arithmetic number, because the mean of its divisors is an integer number (1470198576).

Almost surely, 231350005313 is an apocalyptic number.

31350005313 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31350005313 is a deficient number, since it is larger than the sum of its proper divisors (15696349119).

31350005313 is a wasteful number, since it uses less digits than its factorization.

31350005313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182666 (or 182644 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 24.

The spelling of 31350005313 in words is "thirty-one billion, three hundred fifty million, five thousand, three hundred thirteen".

Divisors: 1 3 11 33 43 121 129 363 473 1331 1419 3993 5203 15609 57233 171699 182587 547761 2008457 6025371 7851241 22093027 23553723 66279081 86363651 243023297 259090953 729069891 950000161 2850000483 10450001771 31350005313