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20303010324 = 22325091108001
BaseRepresentation
bin10010111010001001…
…110101101000010100
31221101221200210021100
4102322021311220110
5313040032312244
613154351550100
71316061511632
oct227211655024
957357623240
1020303010324
11867957a183
123b2752b330
131bb73ba99c
14da8640352
157dc671b69
hex4ba275a14

20303010324 has 36 divisors (see below), whose sum is σ = 51422372820. Its totient is φ = 6754368000.

The previous prime is 20303010323. The next prime is 20303010337. The reversal of 20303010324 is 42301030302.

It can be written as a sum of positive squares in 2 ways, for example, as 7942017924 + 12360992400 = 89118^2 + 111180^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20303010297 and 20303010306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303010323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 535677 + ... + 572324.

It is an arithmetic number, because the mean of its divisors is an integer number (1428399245).

Almost surely, 220303010324 is an apocalyptic number.

It is an amenable number.

20303010324 is an abundant number, since it is smaller than the sum of its proper divisors (31119362496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20303010324 is a wasteful number, since it uses less digits than its factorization.

20303010324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108520 (or 1108515 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20303010324 its reverse (42301030302), we get a palindrome (62604040626).

The spelling of 20303010324 in words is "twenty billion, three hundred three million, ten thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 36 509 1018 1527 2036 3054 4581 6108 9162 18324 1108001 2216002 3324003 4432004 6648006 9972009 13296012 19944018 39888036 563972509 1127945018 1691917527 2255890036 3383835054 5075752581 6767670108 10151505162 20303010324