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2052211231 = 7421696373
BaseRepresentation
bin111101001010010…
…0100001000011111
312022000121010120101
41322110210020133
513200331224411
6535350001531
7101566336060
oct17224441037
95260533511
102052211231
11963468744
124933462a7
13269228095
141567aa567
15c02778c1
hex7a52421f

2052211231 has 8 divisors (see below), whose sum is σ = 2350958624. Its totient is φ = 1754857440.

The previous prime is 2052211211. The next prime is 2052211247. The reversal of 2052211231 is 1321122502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2052211231 - 25 = 2052211199 is a prime.

It is a super-2 number, since 2×20522112312 = 8423141873285070722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2052211199 and 2052211208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2052211201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345240 + ... + 351133.

It is an arithmetic number, because the mean of its divisors is an integer number (293869828).

Almost surely, 22052211231 is an apocalyptic number.

2052211231 is a deficient number, since it is larger than the sum of its proper divisors (298747393).

2052211231 is an equidigital number, since it uses as much as digits as its factorization.

2052211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696801.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2052211231 is about 45301.3380707458. The cubic root of 2052211231 is about 1270.7906769603.

Adding to 2052211231 its reverse (1321122502), we get a palindrome (3373333733).

The spelling of 2052211231 in words is "two billion, fifty-two million, two hundred eleven thousand, two hundred thirty-one".

Divisors: 1 7 421 2947 696373 4874611 293173033 2052211231