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311103001010 = 251729428914713
BaseRepresentation
bin1001000011011110010…
…11110001000110110010
31002202000022011220210202
410201233023301012302
520044114332013020
6354530240555202
731322264606564
oct4415713610662
91082008156722
10311103001010
1110aa3559629a
1250363922b02
132344c1aa9a9
14110b3985334
15815c2e6e75
hex486f2f11b2

311103001010 has 64 divisors (see below), whose sum is σ = 613556143200. Its totient is φ = 113048420352.

The previous prime is 311103001007. The next prime is 311103001031. The reversal of 311103001010 is 10100301113.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 184081328209 + 127021672801 = 429047^2 + 356401^2 .

It is a super-2 number, since 2×3111030010102 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311103000982 and 311103001000.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 21137414 + ... + 21152126.

Almost surely, 2311103001010 is an apocalyptic number.

311103001010 is a deficient number, since it is larger than the sum of its proper divisors (302453142190).

311103001010 is a wasteful number, since it uses less digits than its factorization.

311103001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19055.

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

Adding to 311103001010 its reverse (10100301113), we get a palindrome (321203302123).

The spelling of 311103001010 in words is "three hundred eleven billion, one hundred three million, one thousand, ten".

Divisors: 1 2 5 10 17 29 34 58 85 145 170 290 493 986 2465 4289 4930 8578 14713 21445 29426 42890 72913 73565 124381 145826 147130 248762 250121 364565 426677 500242 621905 729130 853354 1243810 1250605 2114477 2133385 2501210 4228954 4266770 7253509 10572385 14507018 21144770 36267545 63104057 72535090 126208114 315520285 631040570 1072768969 1830017653 2145537938 3660035306 5363844845 9150088265 10727689690 18300176530 31110300101 62220600202 155551500505 311103001010