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2420401402 = 21210200701
BaseRepresentation
bin1001000001000100…
…0110010011111010
320020200102010112101
42100101012103322
514424110321102
61040101334014
7113660033566
oct22021062372
96220363471
102420401402
111032287441
1257670730a
132c75ac9a3
1418d6506a6
15e2755e87
hex904464fa

2420401402 has 4 divisors (see below), whose sum is σ = 3630602106. Its totient is φ = 1210200700.

The previous prime is 2420401397. The next prime is 2420401409. The reversal of 2420401402 is 2041040242.

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

It can be written as a sum of positive squares in only one way, i.e., 1354313601 + 1066087801 = 36801^2 + 32651^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2420401402.

It is not an unprimeable number, because it can be changed into a prime (2420401409) 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 as a sum of consecutive naturals, namely, 605100349 + ... + 605100352.

Almost surely, 22420401402 is an apocalyptic number.

2420401402 is a deficient number, since it is larger than the sum of its proper divisors (1210200704).

2420401402 is a wasteful number, since it uses less digits than its factorization.

2420401402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210200703.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 2420401402 is about 49197.5751638229. The cubic root of 2420401402 is about 1342.6489151393.

Adding to 2420401402 its reverse (2041040242), we get a palindrome (4461441644).

The spelling of 2420401402 in words is "two billion, four hundred twenty million, four hundred one thousand, four hundred two".

Divisors: 1 2 1210200701 2420401402