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311011042100 = 2252111231229681
BaseRepresentation
bin1001000011010011011…
…00111110001100110100
31002201202220010220220012
410201221230332030310
520043422311321400
6354513153555352
731320100145033
oct4415154761464
91081686126805
10311011042100
1110a9986971a0
1250338b75b58
1323436121235
14110a568871a
1581541ced35
hex4869b3e334

311011042100 has 72 divisors (see below), whose sum is σ = 736849255296. Its totient is φ = 113002560000.

The previous prime is 311011042081. The next prime is 311011042103. The reversal of 311011042100 is 1240110113.

It is a super-3 number, since 3×3110110421003 (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311011042103) 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 23 ways as a sum of consecutive naturals, for example, 1239260 + ... + 1468940.

Almost surely, 2311011042100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311011042100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368424627648).

311011042100 is an abundant number, since it is smaller than the sum of its proper divisors (425838213196).

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

311011042100 is a wasteful number, since it uses less digits than its factorization.

311011042100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230937 (or 230930 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 311011042100 its reverse (1240110113), we get a palindrome (312251152213).

The spelling of 311011042100 in words is "three hundred eleven billion, eleven million, forty-two thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 1231 2462 4924 6155 12310 13541 24620 27082 30775 54164 61550 67705 123100 135410 229681 270820 338525 459362 677050 918724 1148405 1354100 2296810 2526491 4593620 5052982 5742025 10105964 11484050 12632455 22968100 25264910 50529820 63162275 126324550 252649100 282737311 565474622 1130949244 1413686555 2827373110 3110110421 5654746220 6220220842 7068432775 12440441684 14136865550 15550552105 28273731100 31101104210 62202208420 77752760525 155505521050 311011042100