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20331112130 = 257290444459
BaseRepresentation
bin10010111011110101…
…000010011011000010
31221110220120111200222
4102323311002123002
5313114231042010
613201234143042
71316552413250
oct227365023302
957426514628
1020331112130
11869342350a
123b34a21a82
131bc0179984
14dac2775d0
157ded73355
hex4bbd426c2

20331112130 has 16 divisors (see below), whose sum is σ = 41824002240. Its totient is φ = 6970666992.

The previous prime is 20331112111. The next prime is 20331112169. The reversal of 20331112130 is 3121113302.

It is a junction number, because it is equal to n+sod(n) for n = 20331112099 and 20331112108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145222160 + ... + 145222299.

It is an arithmetic number, because the mean of its divisors is an integer number (2614000140).

Almost surely, 220331112130 is an apocalyptic number.

20331112130 is an abundant number, since it is smaller than the sum of its proper divisors (21492890110).

20331112130 is a wasteful number, since it uses less digits than its factorization.

20331112130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290444473.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20331112130 its reverse (3121113302), we get a palindrome (23452225432).

The spelling of 20331112130 in words is "twenty billion, three hundred thirty-one million, one hundred twelve thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 290444459 580888918 1452222295 2033111213 2904444590 4066222426 10165556065 20331112130