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311011100030 = 251731223264643
BaseRepresentation
bin1001000011010011011…
…01001100010101111110
31002201202220020212100202
410201221231030111332
520043422320200110
6354513155123502
731320100505651
oct4415155142576
91081686225322
10311011100030
1110a998726774
1250338ba3592
1323436141707
14110a56a1898
1581541e20a5
hex4869b4c57e

311011100030 has 64 divisors (see below), whose sum is σ = 614617694208. Its totient is φ = 112801006080.

The previous prime is 311011100027. The next prime is 311011100051. The reversal of 311011100030 is 30001110113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 311011099984 and 311011100020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1042889 + ... + 1307531.

It is an arithmetic number, because the mean of its divisors is an integer number (9603401472).

Almost surely, 2311011100030 is an apocalyptic number.

311011100030 is a deficient number, since it is larger than the sum of its proper divisors (303606594178).

311011100030 is a wasteful number, since it uses less digits than its factorization.

311011100030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264921.

The product of its (nonzero) digits is 9, while the sum is 11.

Adding to 311011100030 its reverse (30001110113), we get a palindrome (341012210143).

The spelling of 311011100030 in words is "three hundred eleven billion, eleven million, one hundred thousand, thirty".

Divisors: 1 2 5 10 17 31 34 62 85 155 170 223 310 446 527 1054 1115 2230 2635 3791 5270 6913 7582 13826 18955 34565 37910 69130 117521 235042 264643 529286 587605 1175210 1323215 2646430 4498931 8203933 8997862 16407866 22494655 41019665 44989310 59015389 82039330 118030778 139466861 278933722 295076945 590153890 697334305 1003261613 1394668610 1829477059 2006523226 3658954118 5016308065 9147385295 10032616130 18294770590 31101110003 62202220006 155505550015 311011100030