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30631402362340 = 22513971214567897
BaseRepresentation
bin1101111011011111011011…
…10110110101010111100100
311000110100000002122002211101
412331233231312311113210
513003331103001043330
6145051512203045444
76311021464045063
oct675575566652744
9130410002562741
1030631402362340
11983a78309021a
1235286a2810884
1314126b4b59640
1477c7d40041da
15381bd69304ca
hex1bdbeddb55e4

30631402362340 has 48 divisors (see below), whose sum is σ = 69988260554352. Its totient is φ = 11193457729536.

The previous prime is 30631402362287. The next prime is 30631402362349. The reversal of 30631402362340 is 4326320413603.

It can be written as a sum of positive squares in 8 ways, for example, as 7675249139776 + 22956153222564 = 2770424^2 + 4791258^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30631402362340.

It is not an unprimeable number, because it can be changed into a prime (30631402362349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607258729 + ... + 607309168.

It is an arithmetic number, because the mean of its divisors is an integer number (1458088761549).

Almost surely, 230631402362340 is an apocalyptic number.

It is an amenable number.

30631402362340 is an abundant number, since it is smaller than the sum of its proper divisors (39356858192012).

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

30631402362340 is a wasteful number, since it uses less digits than its factorization.

30631402362340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214568016 (or 1214568014 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 37.

Adding to 30631402362340 its reverse (4326320413603), we get a palindrome (34957722775943).

The spelling of 30631402362340 in words is "thirty trillion, six hundred thirty-one billion, four hundred two million, three hundred sixty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 97 130 194 260 388 485 970 1261 1940 2522 5044 6305 12610 25220 1214567897 2429135794 4858271588 6072839485 12145678970 15789382661 24291357940 31578765322 63157530644 78946913305 117813086009 157893826610 235626172018 315787653220 471252344036 589065430045 1178130860090 1531570118117 2356261720180 3063140236234 6126280472468 7657850590585 15315701181170 30631402362340