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31212053243054 = 2411133368449519
BaseRepresentation
bin1110001100011000111110…
…10110001010010010101110
311002111211202122201001112222
413012030133112022102232
513042334241112234204
6150214341434355342
76400665530101445
oct706143726122256
9132454678631488
1031212053243054
119a43a593a5042
12360113158bb52
13145538cc11028
1479c9585d1d5c
15391d6cc50abe
hex1c631f58a4ae

31212053243054 has 16 divisors (see below), whose sum is σ = 48384408905280. Its totient is φ = 15090653840640.

The previous prime is 31212053243051. The next prime is 31212053243081. The reversal of 31212053243054 is 45034235021213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31212053243051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684215494 + ... + 1684234025.

It is an arithmetic number, because the mean of its divisors is an integer number (3024025556580).

Almost surely, 231212053243054 is an apocalyptic number.

31212053243054 is a deficient number, since it is larger than the sum of its proper divisors (17172355662226).

31212053243054 is a wasteful number, since it uses less digits than its factorization.

31212053243054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368449675.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 31212053243054 its reverse (45034235021213), we get a palindrome (76246288264267).

The spelling of 31212053243054 in words is "thirty-one trillion, two hundred twelve billion, fifty-three million, two hundred forty-three thousand, fifty-four".

Divisors: 1 2 41 82 113 226 4633 9266 3368449519 6736899038 138106430279 276212860558 380634795647 761269591294 15606026621527 31212053243054