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31314310000 = 24543131431
BaseRepresentation
bin11101001010011110…
…100111001101110000
32222211100101202202021
4131022132213031300
51003112430410000
622215142201224
72155666146301
oct351236471560
988740352667
1031314310000
111230a125646
12609b123214
132c5077061c
141730c127a8
15c341e411a
hex74a7a7370

31314310000 has 50 divisors (see below), whose sum is σ = 75815100152. Its totient is φ = 12525720000.

The previous prime is 31314309989. The next prime is 31314310007. The reversal of 31314310000 is 1341313.

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×313143100002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31314310007) 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 9 ways as a sum of consecutive naturals, for example, 1555716 + ... + 1575715.

Almost surely, 231314310000 is an apocalyptic number.

It is an amenable number.

31314310000 is an abundant number, since it is smaller than the sum of its proper divisors (44500790152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31314310000 is an equidigital number, since it uses as much as digits as its factorization.

31314310000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131459 (or 3131438 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31314310000 its reverse (1341313), we get a palindrome (31315651313).

The spelling of 31314310000 in words is "thirty-one billion, three hundred fourteen million, three hundred ten thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 625 1000 1250 2000 2500 5000 10000 3131431 6262862 12525724 15657155 25051448 31314310 50102896 62628620 78285775 125257240 156571550 250514480 313143100 391428875 626286200 782857750 1252572400 1565715500 1957144375 3131431000 3914288750 6262862000 7828577500 15657155000 31314310000