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2113313420 = 225311339761
BaseRepresentation
bin111110111110110…
…1001101010001100
312110021120110000102
41331331221222030
513312002012140
6545411350232
7103240603421
oct17575515214
95407513012
102113313420
11994a01719
124ab8b2378
13278a9c91a
14160953d48
15c57e6e15
hex7df69a8c

2113313420 has 24 divisors (see below), whose sum is σ = 4452241248. Its totient is φ = 842604800.

The previous prime is 2113313387. The next prime is 2113313429. The reversal of 2113313420 is 243133112.

It is a super-2 number, since 2×21133134202 = 8932187222304192800, which contains 22 as substring.

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 = 2113313392 and 2113313401.

It is not an unprimeable number, because it can be changed into a prime (2113313429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163661 + ... + 176100.

It is an arithmetic number, because the mean of its divisors is an integer number (185510052).

Almost surely, 22113313420 is an apocalyptic number.

2113313420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113313420 is an abundant number, since it is smaller than the sum of its proper divisors (2338927828).

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

2113313420 is a wasteful number, since it uses less digits than its factorization.

2113313420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340081 (or 340079 counting only the distinct ones).

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

The square root of 2113313420 is about 45970.7887685213. The cubic root of 2113313420 is about 1283.2796389896.

Adding to 2113313420 its reverse (243133112), we get a palindrome (2356446532).

The spelling of 2113313420 in words is "two billion, one hundred thirteen million, three hundred thirteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 311 622 1244 1555 3110 6220 339761 679522 1359044 1698805 3397610 6795220 105665671 211331342 422662684 528328355 1056656710 2113313420