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20301344031 = 353127681409
BaseRepresentation
bin10010111010000011…
…011110110100011111
31221101211120010112210
4102322003132310133
5313034121002111
613154252131503
71316041401633
oct227203366437
957354503483
1020301344031
118678641281
123b26a66b93
131bb6c56407
14da8328dc3
157dc4430a6
hex4ba0ded1f

20301344031 has 8 divisors (see below), whose sum is σ = 27579184560. Its totient is φ = 13278866432.

The previous prime is 20301344003. The next prime is 20301344057. The reversal of 20301344031 is 13044310302.

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

It is a cyclic number.

It is not a de Polignac number, because 20301344031 - 27 = 20301343903 is a prime.

It is a super-2 number, since 2×203013440312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20301343989 and 20301344007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303344031) 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, 63840546 + ... + 63840863.

It is an arithmetic number, because the mean of its divisors is an integer number (3447398070).

Almost surely, 220301344031 is an apocalyptic number.

20301344031 is a deficient number, since it is larger than the sum of its proper divisors (7277840529).

20301344031 is a wasteful number, since it uses less digits than its factorization.

20301344031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127681465.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20301344031 its reverse (13044310302), we get a palindrome (33345654333).

The spelling of 20301344031 in words is "twenty billion, three hundred one million, three hundred forty-four thousand, thirty-one".

Divisors: 1 3 53 159 127681409 383044227 6767114677 20301344031