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1214242001 = 7224780449
BaseRepresentation
bin100100001011111…
…1101110011010001
310010121210212212222
41020113331303101
54441321221001
6320253230425
742042613100
oct11027756321
93117725788
101214242001
11573453a95
1229a792415
1316473cabb
14b739a037
157190061b
hex485fdcd1

1214242001 has 6 divisors (see below), whose sum is σ = 1412485650. Its totient is φ = 1040778816.

The previous prime is 1214241947. The next prime is 1214242033. The reversal of 1214242001 is 1002424121.

It can be written as a sum of positive squares in only one way, i.e., 1110222400 + 104019601 = 33320^2 + 10199^2 .

It is not a de Polignac number, because 1214242001 - 210 = 1214240977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214242091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12390176 + ... + 12390273.

It is an arithmetic number, because the mean of its divisors is an integer number (235414275).

Almost surely, 21214242001 is an apocalyptic number.

It is an amenable number.

1214242001 is a deficient number, since it is larger than the sum of its proper divisors (198243649).

1214242001 is an equidigital number, since it uses as much as digits as its factorization.

1214242001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24780463 (or 24780456 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1214242001 is about 34845.9753917149. The cubic root of 1214242001 is about 1066.8460421753.

Adding to 1214242001 its reverse (1002424121), we get a palindrome (2216666122).

The spelling of 1214242001 in words is "one billion, two hundred fourteen million, two hundred forty-two thousand, one".

Divisors: 1 7 49 24780449 173463143 1214242001