Search a number
-
+
31020310002332 = 2272158266887767
BaseRepresentation
bin1110000110110011110101…
…00011101111101010011100
311001211111211201222012110202
413003121322203233222130
513031214043330033312
6145550311135323032
76351100125331100
oct703317243575234
9131744751865422
1031020310002332
11997a704331342
12358bb3b080478
1314402833a3141
14793568d33900
1538bd995e39c2
hex1c367a8efa9c

31020310002332 has 18 divisors (see below), whose sum is σ = 63148488219432. Its totient is φ = 13294418572344.

The previous prime is 31020310002313. The next prime is 31020310002337. The reversal of 31020310002332 is 23320001302013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020310002337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79133443688 + ... + 79133444079.

It is an arithmetic number, because the mean of its divisors is an integer number (3508249345524).

Almost surely, 231020310002332 is an apocalyptic number.

It is an amenable number.

31020310002332 is an abundant number, since it is smaller than the sum of its proper divisors (32128178217100).

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

31020310002332 is a wasteful number, since it uses less digits than its factorization.

31020310002332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158266887785 (or 158266887776 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31020310002332 its reverse (23320001302013), we get a palindrome (54340311304345).

The spelling of 31020310002332 in words is "thirty-one trillion, twenty billion, three hundred ten million, two thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 49 98 196 158266887767 316533775534 633067551068 1107868214369 2215736428738 4431472857476 7755077500583 15510155001166 31020310002332