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2111010020 = 225717886979
BaseRepresentation
bin111110111010011…
…0111010011100100
312110010020102100022
41331310313103210
513310404310040
6545250134312
7103212201110
oct17564672344
95403212308
102111010020
11993679089
124aab81398
13278474372
14160514740
15c54de6b5
hex7dd374e4

2111010020 has 48 divisors (see below), whose sum is σ = 5364455040. Its totient is φ = 681199104.

The previous prime is 2111009987. The next prime is 2111010043. The reversal of 2111010020 is 200101112.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 441110 + ... + 445869.

It is an arithmetic number, because the mean of its divisors is an integer number (111759480).

Almost surely, 22111010020 is an apocalyptic number.

2111010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111010020 is an abundant number, since it is smaller than the sum of its proper divisors (3253445020).

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

2111010020 is a wasteful number, since it uses less digits than its factorization.

2111010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887012 (or 887010 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 2111010020 is about 45945.7290724611. The cubic root of 2111010020 is about 1282.8132338222.

Adding to 2111010020 its reverse (200101112), we get a palindrome (2311111132).

The spelling of 2111010020 in words is "two billion, one hundred eleven million, ten thousand, twenty".

Divisors: 1 2 4 5 7 10 14 17 20 28 34 35 68 70 85 119 140 170 238 340 476 595 1190 2380 886979 1773958 3547916 4434895 6208853 8869790 12417706 15078643 17739580 24835412 30157286 31044265 60314572 62088530 75393215 105550501 124177060 150786430 211101002 301572860 422202004 527752505 1055505010 2111010020