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231310334103400 = 23522929693947693
BaseRepresentation
bin110100100110000000100010…
…010011000000111101101000
31010100000001101220010010010001
4310212000202103000331220
5220304242031012302100
62135542300040032344
766502422466065646
oct6446004223007550
91110001356103101
10231310334103400
1167780186398412
1221b395aaa626b4
139c0b617791436
1441196a0c0c196
151bb1da5144d6a
hexd260224c0f68

231310334103400 has 48 divisors (see below), whose sum is σ = 537798498698700. Its totient is φ = 92523794388480.

The previous prime is 231310334103397. The next prime is 231310334103403. The reversal of 231310334103400 is 4301433013132.

It is an interprime number because it is at equal distance from previous prime (231310334103397) and next prime (231310334103403).

It can be written as a sum of positive squares in 6 ways, for example, as 170843878167076 + 60466455936324 = 13070726^2 + 7776018^2 .

It is not an unprimeable number, because it can be changed into a prime (231310334103403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56619954 + ... + 60567646.

Almost surely, 2231310334103400 is an apocalyptic number.

231310334103400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231310334103400 is an abundant number, since it is smaller than the sum of its proper divisors (306488164595300).

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

231310334103400 is a wasteful number, since it uses less digits than its factorization.

231310334103400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240678 (or 4240669 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 231310334103400 its reverse (4301433013132), we get a palindrome (235611767116532).

The spelling of 231310334103400 in words is "two hundred thirty-one trillion, three hundred ten billion, three hundred thirty-four million, one hundred three thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 292969 585938 1171876 1464845 2343752 2929690 3947693 5859380 7324225 7895386 11718760 14648450 15790772 19738465 29296900 31581544 39476930 58593800 78953860 98692325 157907720 197384650 394769300 789538600 1156551670517 2313103341034 4626206682068 5782758352585 9252413364136 11565516705170 23131033410340 28913791762925 46262066820680 57827583525850 115655167051700 231310334103400