Search a number
-
+
1214420203231 = 1771436482543
BaseRepresentation
bin10001101011000001000…
…101011011011011011111
311022002122000212100000121
4101223001011123123133
5124344113033000411
62325521423335411
7153511315256614
oct21530105333337
94262560770017
101214420203231
1142903a5aa224
12177442a51567
138a699c8cc41
1442ac774450b
15218cab73571
hex11ac115b6df

1214420203231 has 4 divisors (see below), whose sum is σ = 1285856685792. Its totient is φ = 1142983720672.

The previous prime is 1214420203229. The next prime is 1214420203279. The reversal of 1214420203231 is 1323020244121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1214420203231 - 21 = 1214420203229 is a prime.

It is a super-2 number, since 2×12144202032312 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1214420203196 and 1214420203205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214420203291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35718241255 + ... + 35718241288.

It is an arithmetic number, because the mean of its divisors is an integer number (321464171448).

Almost surely, 21214420203231 is an apocalyptic number.

1214420203231 is a deficient number, since it is larger than the sum of its proper divisors (71436482561).

1214420203231 is an equidigital number, since it uses as much as digits as its factorization.

1214420203231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71436482560.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1214420203231 its reverse (1323020244121), we get a palindrome (2537440447352).

The spelling of 1214420203231 in words is "one trillion, two hundred fourteen billion, four hundred twenty million, two hundred three thousand, two hundred thirty-one".

Divisors: 1 17 71436482543 1214420203231