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20023223230 = 255701351223
BaseRepresentation
bin10010101001011110…
…100010001110111110
31220200110020010112101
4102221132202032332
5312001421120410
613110515055314
71306123406053
oct225136421676
956613203471
1020023223230
118545650a7a
123a698a153a
131b714491aa
14d7d40d02a
157c2d06d3a
hex4a97a23be

20023223230 has 16 divisors (see below), whose sum is σ = 36048226464. Its totient is φ = 8007861600.

The previous prime is 20023223173. The next prime is 20023223239. The reversal of 20023223230 is 3232232002.

It is a junction number, because it is equal to n+sod(n) for n = 20023223198 and 20023223207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023223239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118602 + ... + 232621.

It is an arithmetic number, because the mean of its divisors is an integer number (2253014154).

Almost surely, 220023223230 is an apocalyptic number.

20023223230 is a deficient number, since it is larger than the sum of its proper divisors (16025003234).

20023223230 is a wasteful number, since it uses less digits than its factorization.

20023223230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356931.

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 20023223230 its reverse (3232232002), we get a palindrome (23255455232).

It can be divided in two parts, 20023 and 223230, that added together give a triangular number (243253 = T697).

The spelling of 20023223230 in words is "twenty billion, twenty-three million, two hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 5701 11402 28505 57010 351223 702446 1756115 3512230 2002322323 4004644646 10011611615 20023223230