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310220200020 = 223517304137451
BaseRepresentation
bin1001000001110101001…
…00001001100001010100
31002122201210000222111210
410200322210021201110
520040312332400040
6354302503301420
731261355123013
oct4407244114124
91078653028453
10310220200020
1110a6222408a5
125015814a870
132333b326843
141102c624a7a
158109a66480
hex483a909854

310220200020 has 48 divisors (see below), whose sum is σ = 919711654848. Its totient is φ = 77859187200.

The previous prime is 310220199977. The next prime is 310220200049. The reversal of 310220200020 is 20002022013.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 310220199969 and 310220200005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152067706 + ... + 152069745.

It is an arithmetic number, because the mean of its divisors is an integer number (19160659476).

Almost surely, 2310220200020 is an apocalyptic number.

310220200020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

310220200020 is an abundant number, since it is smaller than the sum of its proper divisors (609491454828).

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

310220200020 is a wasteful number, since it uses less digits than its factorization.

310220200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304137480 (or 304137478 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 310220200020 its reverse (20002022013), we get a palindrome (330222222033).

The spelling of 310220200020 in words is "three hundred ten billion, two hundred twenty million, two hundred thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 304137451 608274902 912412353 1216549804 1520687255 1824824706 3041374510 3649649412 4562061765 5170336667 6082749020 9124123530 10340673334 15511010001 18248247060 20681346668 25851683335 31022020002 51703366670 62044040004 77555050005 103406733340 155110100010 310220200020