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310220202020 = 22571218464931
BaseRepresentation
bin1001000001110101001…
…00001010000000100100
31002122201210001002020212
410200322210022000210
520040312332431040
6354302503314552
731261355131601
oct4407244120044
91078653032225
10310220202020
1110a622242353
125015814ba58
132333b327721
141102c6256a8
158109a66d65
hex483a90a024

310220202020 has 24 divisors (see below), whose sum is σ = 660637954368. Its totient is φ = 122340360800.

The previous prime is 310220202013. The next prime is 310220202037. The reversal of 310220202020 is 20202022013.

It is a super-2 number, since 2×3102202020202 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 310220201986 and 310220202004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109231046 + ... + 109233885.

It is an arithmetic number, because the mean of its divisors is an integer number (27526581432).

Almost surely, 2310220202020 is an apocalyptic number.

It is an amenable number.

310220202020 is an abundant number, since it is smaller than the sum of its proper divisors (350417752348).

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

310220202020 is a wasteful number, since it uses less digits than its factorization.

310220202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218465011 (or 218465009 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 310220202020 its reverse (20202022013), we get a palindrome (330422224033).

The spelling of 310220202020 in words is "three hundred ten billion, two hundred twenty million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 218464931 436929862 873859724 1092324655 2184649310 4369298620 15511010101 31022020202 62044040404 77555050505 155110101010 310220202020