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310031222231020 = 22537418961111123
BaseRepresentation
bin100011001111110001100010…
…0110111101100111111101100
31111122201200202221022111211011
41012133203010313230333230
5311114022420342343040
63015214213254035004
7122206005463542103
oct10637430467547754
91448650687274734
10310031222231020
118a8705594a7854
122a932165048a64
13103cba84c01644
14567b83c44903a
1525c99548583ea
hex119f8c4decfec

310031222231020 has 24 divisors (see below), whose sum is σ = 668661933353904. Its totient is φ = 120660800003136.

The previous prime is 310031222230991. The next prime is 310031222231047. The reversal of 310031222231020 is 20132222130013.

It is a super-2 number, since 2×3100312222310202 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 310031222230982 and 310031222231000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209480554822 + ... + 209480556301.

It is an arithmetic number, because the mean of its divisors is an integer number (27860913889746).

Almost surely, 2310031222231020 is an apocalyptic number.

It is an amenable number.

310031222231020 is an abundant number, since it is smaller than the sum of its proper divisors (358630711122884).

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

310031222231020 is a wasteful number, since it uses less digits than its factorization.

310031222231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418961111169 (or 418961111167 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 310031222231020 its reverse (20132222130013), we get a palindrome (330163444361033).

The spelling of 310031222231020 in words is "three hundred ten trillion, thirty-one billion, two hundred twenty-two million, two hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 418961111123 837922222246 1675844444492 2094805555615 4189611111230 8379222222460 15501561111551 31003122223102 62006244446204 77507805557755 155015611115510 310031222231020