Search a number
-
+
1220023010431 = 4159504350149
BaseRepresentation
bin10001110000001111000…
…010011100010001111111
311022122002111112102121101
4101300033002130101333
5124442101342313211
62332245411113531
7154100210324521
oct21601702342177
94278074472541
101220023010431
114304552021a5
121785472a28a7
138b08098b084
14430998bda11
1521b0799e5c1
hex11c0f09c47f

1220023010431 has 8 divisors (see below), whose sum is σ = 1270962378000. Its totient is φ = 1170092343360.

The previous prime is 1220023010413. The next prime is 1220023010441. The reversal of 1220023010431 is 1340103200221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1220023010431 - 27 = 1220023010303 is a prime.

It is a super-2 number, since 2×12200230104312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220023010399 and 1220023010408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220023010441) 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, 252172656 + ... + 252177493.

It is an arithmetic number, because the mean of its divisors is an integer number (158870297250).

Almost surely, 21220023010431 is an apocalyptic number.

1220023010431 is a deficient number, since it is larger than the sum of its proper divisors (50939367569).

1220023010431 is an equidigital number, since it uses as much as digits as its factorization.

1220023010431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504350249.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1220023010431 its reverse (1340103200221), we get a palindrome (2560126210652).

The spelling of 1220023010431 in words is "one trillion, two hundred twenty billion, twenty-three million, ten thousand, four hundred thirty-one".

Divisors: 1 41 59 2419 504350149 20678356109 29756658791 1220023010431