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31300330244 = 227927987143
BaseRepresentation
bin11101001001101001…
…010010001100000100
32222210101002112010112
4131021221102030010
51003100341031434
622213522412152
72155436263061
oct351151221404
988711075115
1031300330244
1112302247427
126096501058
132c4a8b7491
14172d013c68
15c32d81dce
hex749a52304

31300330244 has 12 divisors (see below), whose sum is σ = 54782543424. Its totient is φ = 15648174984.

The previous prime is 31300330241. The next prime is 31300330273. The reversal of 31300330244 is 44203300313.

It is a super-2 number, since 2×313003302442 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31300330241) 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, 461864 + ... + 525279.

It is an arithmetic number, because the mean of its divisors is an integer number (4565211952).

Almost surely, 231300330244 is an apocalyptic number.

It is an amenable number.

31300330244 is a deficient number, since it is larger than the sum of its proper divisors (23482213180).

31300330244 is a wasteful number, since it uses less digits than its factorization.

31300330244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995074 (or 995072 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 31300330244 its reverse (44203300313), we get a palindrome (75503630557).

The spelling of 31300330244 in words is "thirty-one billion, three hundred million, three hundred thirty thousand, two hundred forty-four".

Divisors: 1 2 4 7927 15854 31708 987143 1974286 3948572 7825082561 15650165122 31300330244