Search a number
-
+
311023230100 = 225211282748391
BaseRepresentation
bin1001000011010100110…
…11011101110010010100
31002201210202002010200121
410201222123131302110
520043433421330400
6354514311121324
731320305556412
oct4415233356224
91081722063617
10311023230100
1110a9a4561220
1250341073244
13234387ca97b
14110a713c2b2
1581552db21a
hex486a6ddc94

311023230100 has 36 divisors (see below), whose sum is σ = 736276812768. Its totient is φ = 113099356000.

The previous prime is 311023230083. The next prime is 311023230109. The reversal of 311023230100 is 1032320113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311023230109) 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 11 ways as a sum of consecutive naturals, for example, 141373096 + ... + 141375295.

It is an arithmetic number, because the mean of its divisors is an integer number (20452133688).

Almost surely, 2311023230100 is an apocalyptic number.

It is an amenable number.

311023230100 is an abundant number, since it is smaller than the sum of its proper divisors (425253582668).

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

311023230100 is a wasteful number, since it uses less digits than its factorization.

311023230100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282748416 (or 282748409 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 311023230100 its reverse (1032320113), we get a palindrome (312055550213).

The spelling of 311023230100 in words is "three hundred eleven billion, twenty-three million, two hundred thirty thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 282748391 565496782 1130993564 1413741955 2827483910 3110232301 5654967820 6220464602 7068709775 12440929204 14137419550 15551161505 28274839100 31102323010 62204646020 77755807525 155511615050 311023230100