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2012231000 = 235313154787
BaseRepresentation
bin111011111110000…
…0011010101011000
312012020100221000002
41313330003111120
513110112343000
6531401032132
7100602452453
oct16774032530
95166327002
102012231000
11942940a2a
12481a85648
13260b6a540
1415136049a
15bb9cb8d5
hex77f03558

2012231000 has 64 divisors (see below), whose sum is σ = 5070854880. Its totient is φ = 742972800.

The previous prime is 2012230999. The next prime is 2012231003. The reversal of 2012231000 is 1322102.

It is a happy number.

It is a super-2 number, since 2×20122310002 = 8098147194722000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012231003) 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 15 ways as a sum of consecutive naturals, for example, 64394 + ... + 90393.

Almost surely, 22012231000 is an apocalyptic number.

2012231000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012231000 is an abundant number, since it is smaller than the sum of its proper divisors (3058623880).

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

2012231000 is a wasteful number, since it uses less digits than its factorization.

2012231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154821 (or 154807 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2012231000 is about 44857.8978553387. The cubic root of 2012231000 is about 1262.4841810912.

Adding to 2012231000 its reverse (1322102), we get a palindrome (2013553102).

The spelling of 2012231000 in words is "two billion, twelve million, two hundred thirty-one thousand".

Divisors: 1 2 4 5 8 10 13 20 25 26 40 50 52 65 100 104 125 130 200 250 260 325 500 520 650 1000 1300 1625 2600 3250 6500 13000 154787 309574 619148 773935 1238296 1547870 2012231 3095740 3869675 4024462 6191480 7739350 8048924 10061155 15478700 16097848 19348375 20122310 30957400 38696750 40244620 50305775 77393500 80489240 100611550 154787000 201223100 251528875 402446200 503057750 1006115500 2012231000