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13132300122020 = 225880937453657
BaseRepresentation
bin1011111100011001101000…
…0101010111011110100100
31201111102202120112002010202
42333012122011113132210
53210124422312401040
643532521223210032
72523530432156012
oct277063205273644
951442676462122
1013132300122020
114203417073612
1215811648a6918
137434a82487a1
1433586cb918b2
1517b9043e3015
hexbf19a1577a4

13132300122020 has 24 divisors (see below), whose sum is σ = 27578147009784. Its totient is φ = 5252859714816.

The previous prime is 13132300122013. The next prime is 13132300122043. The reversal of 13132300122020 is 2022100323131.

It can be written as a sum of positive squares in 4 ways, for example, as 429591106624 + 12702709015396 = 655432^2 + 3564086^2 .

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 = 13132300121983 and 13132300122001.

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, 1964969 + ... + 5488688.

It is an arithmetic number, because the mean of its divisors is an integer number (1149089458741).

Almost surely, 213132300122020 is an apocalyptic number.

13132300122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13132300122020 is an abundant number, since it is smaller than the sum of its proper divisors (14445846887764).

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

13132300122020 is a wasteful number, since it uses less digits than its factorization.

13132300122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7541759 (or 7541757 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13132300122020 its reverse (2022100323131), we get a palindrome (15154400445151).

The spelling of 13132300122020 in words is "thirteen trillion, one hundred thirty-two billion, three hundred million, one hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 88093 176186 352372 440465 880930 1761860 7453657 14907314 29814628 37268285 74536570 149073140 656615006101 1313230012202 2626460024404 3283075030505 6566150061010 13132300122020