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20312330230 = 252031233023
BaseRepresentation
bin10010111010101101…
…011000111111110110
31221102121020021210001
4102322231120333312
5313044424031410
613155323421514
71316233646443
oct227255307766
957377207701
1020312330230
118683865385
123b2a68489a
131bb9301b1a
14da99889ca
157dd3b333a
hex4bab58ff6

20312330230 has 8 divisors (see below), whose sum is σ = 36562194432. Its totient is φ = 8124932088.

The previous prime is 20312330219. The next prime is 20312330257. The reversal of 20312330230 is 3203321302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20312330198 and 20312330207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1015616502 + ... + 1015616521.

It is an arithmetic number, because the mean of its divisors is an integer number (4570274304).

Almost surely, 220312330230 is an apocalyptic number.

20312330230 is a deficient number, since it is larger than the sum of its proper divisors (16249864202).

20312330230 is a wasteful number, since it uses less digits than its factorization.

20312330230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031233030.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20312330230 its reverse (3203321302), we get a palindrome (23515651532).

The spelling of 20312330230 in words is "twenty billion, three hundred twelve million, three hundred thirty thousand, two hundred thirty".

Divisors: 1 2 5 10 2031233023 4062466046 10156165115 20312330230