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203130331330 = 25196715956821
BaseRepresentation
bin1011110100101110000…
…0101110000011000010
3201102022111112222210211
42331023200232003002
511312002331100310
6233152231544334
720450521220263
oct2751340560302
9642274488724
10203130331330
117916885a493
123344bb2b0aa
1316202a06c34
149b8db3296a
15543d1aec8a
hex2f4b82e0c2

203130331330 has 32 divisors (see below), whose sum is σ = 390623002560. Its totient is φ = 75826808640.

The previous prime is 203130331309. The next prime is 203130331363. The reversal of 203130331330 is 33133031302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7965681 + ... + 7991140.

It is an arithmetic number, because the mean of its divisors is an integer number (12206968830).

Almost surely, 2203130331330 is an apocalyptic number.

203130331330 is a deficient number, since it is larger than the sum of its proper divisors (187492671230).

203130331330 is a wasteful number, since it uses less digits than its factorization.

203130331330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15956914.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 203130331330 its reverse (33133031302), we get a palindrome (236263362632).

The spelling of 203130331330 in words is "two hundred three billion, one hundred thirty million, three hundred thirty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 19 38 67 95 134 190 335 670 1273 2546 6365 12730 15956821 31913642 79784105 159568210 303179599 606359198 1069107007 1515897995 2138214014 3031795990 5345535035 10691070070 20313033133 40626066266 101565165665 203130331330