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2012031420 = 223574790551
BaseRepresentation
bin111011111101101…
…0010100110111100
312012012222210020020
41313323102212330
513110040001140
6531352452140
7100600661550
oct16773224674
95165883206
102012031420
11942814a93
124819aa050
13260aca749
1415130b860
15bb98c6d0
hex77ed29bc

2012031420 has 48 divisors (see below), whose sum is σ = 6438501888. Its totient is φ = 459892800.

The previous prime is 2012031401. The next prime is 2012031443. The reversal of 2012031420 is 241302102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2012031420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2394856 + ... + 2395695.

It is an arithmetic number, because the mean of its divisors is an integer number (134135456).

Almost surely, 22012031420 is an apocalyptic number.

2012031420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012031420 is an abundant number, since it is smaller than the sum of its proper divisors (4426470468).

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

2012031420 is a wasteful number, since it uses less digits than its factorization.

2012031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790570 (or 4790568 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2012031420 is about 44855.6732197835. The cubic root of 2012031420 is about 1262.4424405350.

Adding to 2012031420 its reverse (241302102), we get a palindrome (2253333522).

The spelling of 2012031420 in words is "two billion, twelve million, thirty-one thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 4790551 9581102 14371653 19162204 23952755 28743306 33533857 47905510 57486612 67067714 71858265 95811020 100601571 134135428 143716530 167669285 201203142 287433060 335338570 402406284 503007855 670677140 1006015710 2012031420