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31442918008319 = 291099947142679
BaseRepresentation
bin1110010011000110111111…
…11101010110010111111111
311010022220200000111021100122
413021203133331112113333
513110130044002231234
6150512402131445155
76423450551163026
oct711433775262777
9133286600437318
1031442918008319
11a022959556204
123639a217567bb
1314710928030cc
147a9bb99058bd
15397d80bba92e
hex1c98dff565ff

31442918008319 has 8 divisors (see below), whose sum is σ = 32825570844000. Its totient is φ = 30080159458272.

The previous prime is 31442918008259. The next prime is 31442918008331. The reversal of 31442918008319 is 91380081924413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31442918008319 is a prime.

It is a super-2 number, since 2×314429180083192 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31442918008919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4973568179 + ... + 4973574500.

It is an arithmetic number, because the mean of its divisors is an integer number (4103196355500).

Almost surely, 231442918008319 is an apocalyptic number.

31442918008319 is a deficient number, since it is larger than the sum of its proper divisors (1382652835681).

31442918008319 is a wasteful number, since it uses less digits than its factorization.

31442918008319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9947142817.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The spelling of 31442918008319 in words is "thirty-one trillion, four hundred forty-two billion, nine hundred eighteen million, eight thousand, three hundred nineteen".

Divisors: 1 29 109 3161 9947142679 288467137691 1084238552011 31442918008319