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15350020220 = 2251995417129
BaseRepresentation
bin11100100101110111…
…01011100001111100
31110121202202211011102
432102323223201330
5222414101121340
611015100112232
71052250006353
oct162273534174
943552684142
1015350020220
116567760427
122b84835678
1315a820b502
14a588d899a
155ec904215
hex392eeb87c

15350020220 has 48 divisors (see below), whose sum is σ = 32461464000. Its totient is φ = 6097006080.

The previous prime is 15350020201. The next prime is 15350020229. The reversal of 15350020220 is 2202005351.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 15350020192 and 15350020201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15350020229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2149616 + ... + 2156744.

It is an arithmetic number, because the mean of its divisors is an integer number (676280500).

Almost surely, 215350020220 is an apocalyptic number.

15350020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15350020220 is an abundant number, since it is smaller than the sum of its proper divisors (17111443780).

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

15350020220 is a wasteful number, since it uses less digits than its factorization.

15350020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7878 (or 7876 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 15350020220 its reverse (2202005351), we get a palindrome (17552025571).

The spelling of 15350020220 in words is "fifteen billion, three hundred fifty million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 199 398 541 796 995 1082 1990 2164 2705 3980 5410 7129 10820 14258 28516 35645 71290 107659 142580 215318 430636 538295 1076590 1418671 2153180 2837342 3856789 5674684 7093355 7713578 14186710 15427156 19283945 28373420 38567890 77135780 767501011 1535002022 3070004044 3837505055 7675010110 15350020220