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31031112253134 = 2372176208705933
BaseRepresentation
bin1110000111000111111100…
…11011000011111011001110
311001212112201120022101210210
413003203332123003323032
513031403204214100014
6145555255101143250
76351631614052500
oct703437633037316
9131775646271723
1031031112253134
119984247984244
12359205485ab26
1314412b5350b16
14793cb1849d70
1538c2ccb20859
hex1c38fe6c3ece

31031112253134 has 48 divisors (see below), whose sum is σ = 76441587459408. Its totient is φ = 8344500772608.

The previous prime is 31031112253133. The next prime is 31031112253171. The reversal of 31031112253134 is 43135221113013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31031112253133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3104347969 + ... + 3104357964.

It is an arithmetic number, because the mean of its divisors is an integer number (1592533072071).

Almost surely, 231031112253134 is an apocalyptic number.

31031112253134 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31031112253134 is an abundant number, since it is smaller than the sum of its proper divisors (45410475206274).

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

31031112253134 is a wasteful number, since it uses less digits than its factorization.

31031112253134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6208705969 (or 6208705962 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 31031112253134 its reverse (43135221113013), we get a palindrome (74166333366147).

The spelling of 31031112253134 in words is "thirty-one trillion, thirty-one billion, one hundred twelve million, two hundred fifty-three thousand, one hundred thirty-four".

Divisors: 1 2 3 6 7 14 17 21 34 42 49 51 98 102 119 147 238 294 357 714 833 1666 2499 4998 6208705933 12417411866 18626117799 37252235598 43460941531 86921883062 105548000861 130382824593 211096001722 260765649186 304226590717 316644002583 608453181434 633288005166 738836006027 912679772151 1477672012054 1825359544302 2216508018081 4433016036162 5171852042189 10343704084378 15515556126567 31031112253134