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44020215211331 = 315326792583817
BaseRepresentation
bin10100000001001010000010…
…10010100110010101000011
312202212021212111002211221102
422000211001102212111003
521232211400043230311
6233342335132245015
712162232653364052
oct1200450122462503
9182767774084842
1044020215211331
1113031960978167
124b2b4b501076b
131b7411c51c9b8
14ac2838522399
155151007a443b
hex2809414a6543

44020215211331 has 8 divisors (see below), whose sum is σ = 46297584837504. Its totient is φ = 41796430752960.

The previous prime is 44020215211277. The next prime is 44020215211381. The reversal of 44020215211331 is 13311251202044.

It is a happy number.

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-44020215211331 is a prime.

It is a super-2 number, since 2×440202152113312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44020215211294 and 44020215211303.

It is not an unprimeable number, because it can be changed into a prime (44020215211381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13396290266 + ... + 13396293551.

It is an arithmetic number, because the mean of its divisors is an integer number (5787198104688).

Almost surely, 244020215211331 is an apocalyptic number.

44020215211331 is a deficient number, since it is larger than the sum of its proper divisors (2277369626173).

44020215211331 is a wasteful number, since it uses less digits than its factorization.

44020215211331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26792583901.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 44020215211331 its reverse (13311251202044), we get a palindrome (57331466413375).

The spelling of 44020215211331 in words is "forty-four trillion, twenty billion, two hundred fifteen million, two hundred eleven thousand, three hundred thirty-one".

Divisors: 1 31 53 1643 26792583817 830570098327 1420006942301 44020215211331