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2113454260 = 225105672713
BaseRepresentation
bin111110111111000…
…1100000010110100
312110021211121012201
41331332030002310
513312021014020
6545414354244
7103242031141
oct17576140264
95407747181
102113454260
11994a98515
124ab95b984
13278b1ba68
1416098d3c8
15c5823a0a
hex7df8c0b4

2113454260 has 12 divisors (see below), whose sum is σ = 4438253988. Its totient is φ = 845381696.

The previous prime is 2113454249. The next prime is 2113454261. The reversal of 2113454260 is 624543112.

It can be written as a sum of positive squares in 2 ways, for example, as 343064484 + 1770389776 = 18522^2 + 42076^2 .

It is a super-2 number, since 2×21134542602 = 8933377818224295200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113454261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52836337 + ... + 52836376.

It is an arithmetic number, because the mean of its divisors is an integer number (369854499).

Almost surely, 22113454260 is an apocalyptic number.

2113454260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113454260 is an abundant number, since it is smaller than the sum of its proper divisors (2324799728).

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

2113454260 is a wasteful number, since it uses less digits than its factorization.

2113454260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105672722 (or 105672720 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2113454260 is about 45972.3205853261. The cubic root of 2113454260 is about 1283.3081460546.

Adding to 2113454260 its reverse (624543112), we get a palindrome (2737997372).

The spelling of 2113454260 in words is "two billion, one hundred thirteen million, four hundred fifty-four thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 105672713 211345426 422690852 528363565 1056727130 2113454260