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231312311002310 = 2549036652970913
BaseRepresentation
bin110100100110000010011000…
…001000010010010011000110
31010100000020111122222222121012
4310212002120020102103012
5220304310103104033220
62135543224135522222
766502522462334426
oct6446023010222306
91110006448888535
10231312311002310
116778100029686a
1221b39a60b29372
139c0b87120a9c5
14411980b5b2486
151bb1e6d992ac5
hexd260982124c6

231312311002310 has 32 divisors (see below), whose sum is σ = 416459212050240. Its totient is φ = 92503358373888.

The previous prime is 231312311002273. The next prime is 231312311002351. The reversal of 231312311002310 is 13200113213132.

It is a super-2 number, since 2×2313123110023102 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3261881414 + ... + 3261952326.

It is an arithmetic number, because the mean of its divisors is an integer number (13014350376570).

Almost surely, 2231312311002310 is an apocalyptic number.

231312311002310 is a deficient number, since it is larger than the sum of its proper divisors (185146901047930).

231312311002310 is a wasteful number, since it uses less digits than its factorization.

231312311002310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142352.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 231312311002310 its reverse (13200113213132), we get a palindrome (244512424215442).

The spelling of 231312311002310 in words is "two hundred thirty-one trillion, three hundred twelve billion, three hundred eleven million, two thousand, three hundred ten".

Divisors: 1 2 5 10 4903 9806 24515 49030 66529 70913 133058 141826 332645 354565 665290 709130 326191687 347686439 652383374 695372878 1630958435 1738432195 3261916870 3476864390 4717770977 9435541954 23588854885 47177709770 23131231100231 46262462200462 115656155501155 231312311002310