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1214242113 = 3757821053
BaseRepresentation
bin100100001011111…
…1101110101000001
310010121210220001010
41020113331311001
54441321221423
6320253231133
742042613320
oct11027756501
93117726033
101214242113
11573454087
1229a7924a9
1316473cb76
14b739a0b7
1571900693
hex485fdd41

1214242113 has 8 divisors (see below), whose sum is σ = 1850273728. Its totient is φ = 693852624.

The previous prime is 1214242111. The next prime is 1214242121. The reversal of 1214242113 is 3112424121.

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

It is not a de Polignac number, because 1214242113 - 21 = 1214242111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 57821053 = 1214242113 / (1 + 2 + 1 + 4 + 2 + 4 + 2 + 1 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1214242113.

It is not an unprimeable number, because it can be changed into a prime (1214242111) 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, 28910506 + ... + 28910547.

It is an arithmetic number, because the mean of its divisors is an integer number (231284216).

Almost surely, 21214242113 is an apocalyptic number.

It is an amenable number.

1214242113 is a deficient number, since it is larger than the sum of its proper divisors (636031615).

1214242113 is an equidigital number, since it uses as much as digits as its factorization.

1214242113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57821063.

The product of its digits is 384, while the sum is 21.

The square root of 1214242113 is about 34845.9769987871. The cubic root of 1214242113 is about 1066.8460749768.

Adding to 1214242113 its reverse (3112424121), we get a palindrome (4326666234).

The spelling of 1214242113 in words is "one billion, two hundred fourteen million, two hundred forty-two thousand, one hundred thirteen".

Divisors: 1 3 7 21 57821053 173463159 404747371 1214242113