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2231485236 = 2232103959659
BaseRepresentation
bin1000010100000001…
…1100001100110100
312202111221012021100
42011000130030310
514032230011421
61005232250100
7106204211601
oct20500341464
95674835240
102231485236
11a45684982
125233a0930
13297406686
141725156a8
15d0d8ac26
hex8501c334

2231485236 has 36 divisors (see below), whose sum is σ = 5646222400. Its totient is φ = 743100048.

The previous prime is 2231485211. The next prime is 2231485237. The reversal of 2231485236 is 6325841322.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×22314852363 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2231485236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231485237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7575 + ... + 67233.

Almost surely, 22231485236 is an apocalyptic number.

It is an amenable number.

2231485236 is an abundant number, since it is smaller than the sum of its proper divisors (3414737164).

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

2231485236 is a wasteful number, since it uses less digits than its factorization.

2231485236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60708 (or 60703 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 2231485236 is about 47238.5990054743. The cubic root of 2231485236 is about 1306.7665405346.

The spelling of 2231485236 in words is "two billion, two hundred thirty-one million, four hundred eighty-five thousand, two hundred thirty-six".

Divisors: 1 2 3 4 6 9 12 18 36 1039 2078 3117 4156 6234 9351 12468 18702 37404 59659 119318 178977 238636 357954 536931 715908 1073862 2147724 61985701 123971402 185957103 247942804 371914206 557871309 743828412 1115742618 2231485236