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1302420001 = 2437353437
BaseRepresentation
bin100110110100001…
…0101101000100001
310100202201210100211
41031220111220201
510131404420001
6333123214121
744163246601
oct11550255041
93322653324
101302420001
11609200473
12304217341
13179aa462c
14c4d90c01
157951c351
hex4da15a21

1302420001 has 4 divisors (see below), whose sum is σ = 1302497812. Its totient is φ = 1302342192.

The previous prime is 1302419969. The next prime is 1302420059. The reversal of 1302420001 is 1000242031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 616032400 + 686387601 = 24820^2 + 26199^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302420001 - 25 = 1302419969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1302420401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2346 + ... + 51091.

It is an arithmetic number, because the mean of its divisors is an integer number (325624453).

Almost surely, 21302420001 is an apocalyptic number.

It is an amenable number.

1302420001 is a deficient number, since it is larger than the sum of its proper divisors (77811).

1302420001 is an equidigital number, since it uses as much as digits as its factorization.

1302420001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77810.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1302420001 is about 36089.0565268753. The cubic root of 1302420001 is about 1092.0696868251.

Adding to 1302420001 its reverse (1000242031), we get a palindrome (2302662032).

The spelling of 1302420001 in words is "one billion, three hundred two million, four hundred twenty thousand, one".

Divisors: 1 24373 53437 1302420001