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20331331130 = 251131527523
BaseRepresentation
bin10010111011110101…
…110111111000111010
31221110220222122010002
4102323311313320322
5313114310044010
613201242553002
71316554314605
oct227365677072
957426878102
1020331331130
118693563000
123b34b08762
131bc0225566
14dac2d333c
157dedb81a5
hex4bbd77e3a

20331331130 has 32 divisors (see below), whose sum is σ = 40253312448. Its totient is φ = 7393206480.

The previous prime is 20331331103. The next prime is 20331331157. The reversal of 20331331130 is 3113313302.

It is an interprime number because it is at equal distance from previous prime (20331331103) and next prime (20331331157).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 750452 + ... + 777071.

It is an arithmetic number, because the mean of its divisors is an integer number (1257916014).

Almost surely, 220331331130 is an apocalyptic number.

20331331130 is a deficient number, since it is larger than the sum of its proper divisors (19921981318).

20331331130 is a wasteful number, since it uses less digits than its factorization.

20331331130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527563 (or 1527541 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 20331331130 its reverse (3113313302), we get a palindrome (23444644432).

The spelling of 20331331130 in words is "twenty billion, three hundred thirty-one million, three hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 121 242 605 1210 1331 2662 6655 13310 1527523 3055046 7637615 15275230 16802753 33605506 84013765 168027530 184830283 369660566 924151415 1848302830 2033133113 4066266226 10165665565 20331331130