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200123030231 = 9715114099697
BaseRepresentation
bin1011101001100001000…
…0110001101011010111
3201010112220210021020122
42322120100301223113
511234322443431411
6231534003022155
720313143455505
oct2723020615327
9633486707218
10200123030231
1177965262683
123295096a95b
1315b43967427
149986589675
1553141779db
hex2e98431ad7

200123030231 has 16 divisors (see below), whose sum is σ = 203690585280. Its totient is φ = 196588339200.

The previous prime is 200123030209. The next prime is 200123030293. The reversal of 200123030231 is 132030321002.

200123030231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-200123030231 is a prime.

It is a super-2 number, since 2×2001230302312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200123030131) 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 15 ways as a sum of consecutive naturals, for example, 20632775 + ... + 20642471.

It is an arithmetic number, because the mean of its divisors is an integer number (12730661580).

Almost surely, 2200123030231 is an apocalyptic number.

200123030231 is a deficient number, since it is larger than the sum of its proper divisors (3567555049).

200123030231 is a wasteful number, since it uses less digits than its factorization.

200123030231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11354.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 200123030231 its reverse (132030321002), we get a palindrome (332153351233).

The spelling of 200123030231 in words is "two hundred billion, one hundred twenty-three million, thirty thousand, two hundred thirty-one".

Divisors: 1 97 151 1409 9697 14647 136673 212759 940609 1464247 13663073 20637623 142031959 1325318081 2063124023 200123030231