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31340344337351 = 7171913861275691
BaseRepresentation
bin1110010000000111111100…
…00101110110001111000111
311002222002220111000220020222
413020003332011312033013
513101440011122243401
6150353315550014555
76413156643312440
oct710037605661707
9132862814026228
1031340344337351
119a93402379005
123621b75aa745b
1314644c6a3b84a
147a4c48b382c7
1539537aa51c1b
hex1c80fe1763c7

31340344337351 has 16 divisors (see below), whose sum is σ = 39920473992960. Its totient is φ = 23952284392320.

The previous prime is 31340344337327. The next prime is 31340344337399. The reversal of 31340344337351 is 15373344304313.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31340344337351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31340344337311) 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, 6930635585 + ... + 6930640106.

It is an arithmetic number, because the mean of its divisors is an integer number (2495029624560).

Almost surely, 231340344337351 is an apocalyptic number.

31340344337351 is a deficient number, since it is larger than the sum of its proper divisors (8580129655609).

31340344337351 is a wasteful number, since it uses less digits than its factorization.

31340344337351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13861275734.

The product of its (nonzero) digits is 1632960, while the sum is 44.

The spelling of 31340344337351 in words is "thirty-one trillion, three hundred forty billion, three hundred forty-four million, three hundred thirty-seven thousand, three hundred fifty-one".

Divisors: 1 7 17 19 119 133 323 2261 13861275691 97028929837 235641686747 263364238129 1649491807229 1843549666903 4477192048193 31340344337351