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20331016441 = 591774719417
BaseRepresentation
bin10010111011110100…
…101011000011111001
31221110220101122102221
4102323310223003321
5313114220011231
613201232124041
71316551534261
oct227364530371
957426348387
1020331016441
11869336862a
123b34996621
131bc0145258
14dac2507a1
157ded54d11
hex4bbd2b0f9

20331016441 has 8 divisors (see below), whose sum is σ = 20677839840. Its totient is φ = 19984267488.

The previous prime is 20331016439. The next prime is 20331016477. The reversal of 20331016441 is 14461013302.

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 20331016441 - 21 = 20331016439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20331056441) 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, 1037365 + ... + 1056781.

It is an arithmetic number, because the mean of its divisors is an integer number (2584729980).

Almost surely, 220331016441 is an apocalyptic number.

It is an amenable number.

20331016441 is a deficient number, since it is larger than the sum of its proper divisors (346823399).

20331016441 is a wasteful number, since it uses less digits than its factorization.

20331016441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37223.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 20331016441 its reverse (14461013302), we get a palindrome (34792029743).

The spelling of 20331016441 in words is "twenty billion, three hundred thirty-one million, sixteen thousand, four hundred forty-one".

Divisors: 1 59 17747 19417 1047073 1145603 344593499 20331016441