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20021230341 = 3271272502341
BaseRepresentation
bin10010101001010110…
…111011101100000101
31220200022110212210200
4102221112323230011
5312000413332331
613110404241113
71306100435640
oct225126735405
956608425720
1020021230341
11854450a762
123a690a0199
131b70bcc078
14d7d050a57
157c2a615e6
hex4a95bbb05

20021230341 has 24 divisors (see below), whose sum is σ = 33311176704. Its totient is φ = 11350614240.

The previous prime is 20021230319. The next prime is 20021230349. The reversal of 20021230341 is 14303212002.

20021230341 is a `hidden beast` number, since 200 + 2 + 123 + 0 + 341 = 666.

It is not a de Polignac number, because 20021230341 - 27 = 20021230213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021230349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1243170 + ... + 1259171.

It is an arithmetic number, because the mean of its divisors is an integer number (1387965696).

Almost surely, 220021230341 is an apocalyptic number.

20021230341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20021230341 is a deficient number, since it is larger than the sum of its proper divisors (13289946363).

20021230341 is a wasteful number, since it uses less digits than its factorization.

20021230341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502481 (or 2502478 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20021230341 its reverse (14303212002), we get a palindrome (34324442343).

The spelling of 20021230341 in words is "twenty billion, twenty-one million, two hundred thirty thousand, three hundred forty-one".

Divisors: 1 3 7 9 21 63 127 381 889 1143 2667 8001 2502341 7507023 17516387 22521069 52549161 157647483 317797307 953391921 2224581149 2860175763 6673743447 20021230341