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200312112030 = 23543155280707
BaseRepresentation
bin1011101010001110001…
…0000100001110011110
3201011001002120121201020
42322203202010032132
511240214400041110
6232004435425010
720320630600422
oct2724342041636
9634032517636
10200312112030
1177a51a68628
12329a4155166
1315b73b9ac54
1499a3728b82
155325a76d70
hex2ea388439e

200312112030 has 32 divisors (see below), whose sum is σ = 491929282944. Its totient is φ = 52174317216.

The previous prime is 200312112001. The next prime is 200312112031. The reversal of 200312112030 is 30211213002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200312112031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77639064 + ... + 77641643.

It is an arithmetic number, because the mean of its divisors is an integer number (15372790092).

Almost surely, 2200312112030 is an apocalyptic number.

200312112030 is an abundant number, since it is smaller than the sum of its proper divisors (291617170914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200312112030 is a wasteful number, since it uses less digits than its factorization.

200312112030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155280760.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 200312112030 its reverse (30211213002), we get a palindrome (230523325032).

The spelling of 200312112030 in words is "two hundred billion, three hundred twelve million, one hundred twelve thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 155280707 310561414 465842121 776403535 931684242 1552807070 2329210605 4658421210 6677070401 13354140802 20031211203 33385352005 40062422406 66770704010 100156056015 200312112030