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31030303010 = 2572891395119
BaseRepresentation
bin11100111001100011…
…001101100100100010
32222002112222201101212
4130321203031210202
51002022224144020
622131035030122
72145650136500
oct347143154442
988075881355
1031030303010
1112183884a23
12601bb9b342
132c06982155
141705203670
15c192e3cc5
hex7398cd922

31030303010 has 96 divisors (see below), whose sum is σ = 66189312000. Its totient is φ = 10441702656.

The previous prime is 31030302967. The next prime is 31030303013. The reversal of 31030303010 is 1030303013.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31030303013) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 6059231 + ... + 6064349.

It is an arithmetic number, because the mean of its divisors is an integer number (689472000).

Almost surely, 231030303010 is an apocalyptic number.

31030303010 is an abundant number, since it is smaller than the sum of its proper divisors (35159008990).

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

31030303010 is a wasteful number, since it uses less digits than its factorization.

31030303010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368 (or 5361 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 14.

Adding to 31030303010 its reverse (1030303013), we get a palindrome (32060606023).

The spelling of 31030303010 in words is "thirty-one billion, thirty million, three hundred three thousand, ten".

Divisors: 1 2 5 7 10 14 35 49 70 89 98 139 178 245 278 445 490 623 695 890 973 1246 1390 1946 3115 4361 4865 5119 6230 6811 8722 9730 10238 12371 13622 21805 24742 25595 34055 35833 43610 51190 61855 68110 71666 86597 123710 173194 179165 250831 358330 432985 455591 501662 606179 711541 865970 911182 1212358 1254155 1423082 2277955 2508310 3030895 3189137 3557705 4555910 4980787 6061790 6378274 7115410 9961574 15945685 22323959 24903935 31891370 34865509 44647918 49807870 63327149 69731018 111619795 126654298 174327545 223239590 316635745 348655090 443290043 633271490 886580086 2216450215 3103030301 4432900430 6206060602 15515151505 31030303010