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31200300230 = 2511535351681
BaseRepresentation
bin11101000011101011…
…101100110011000110
32222112101212110202012
4131003223230303012
51002344234101410
622155550414222
72153113114301
oct350353546306
988471773665
1031200300230
11122608353a0
126068b01372
132c32c63118
14171da15b38
15c291c3605
hex743aeccc6

31200300230 has 32 divisors (see below), whose sum is σ = 62422018848. Its totient is φ = 11131494400.

The previous prime is 31200300223. The next prime is 31200300233. The reversal of 31200300230 is 3200300213.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200300233) 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, 2670011 + ... + 2681670.

It is an arithmetic number, because the mean of its divisors is an integer number (1950688089).

Almost surely, 231200300230 is an apocalyptic number.

31200300230 is an abundant number, since it is smaller than the sum of its proper divisors (31221718618).

31200300230 is a wasteful number, since it uses less digits than its factorization.

31200300230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5351752.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 31200300230 its reverse (3200300213), we get a palindrome (34400600443).

The spelling of 31200300230 in words is "thirty-one billion, two hundred million, three hundred thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 53 55 106 110 265 530 583 1166 2915 5830 5351681 10703362 26758405 53516810 58868491 117736982 283639093 294342455 567278186 588684910 1418195465 2836390930 3120030023 6240060046 15600150115 31200300230