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1401042305 = 51321554497
BaseRepresentation
bin101001110000010…
…0011010110000001
310121122022022201202
41103200203112001
510332131323210
6351005110545
746501443305
oct12340432601
93548268652
101401042305
11659940903
12331258455
13194355020
14d4103d05
1582eed9a5
hex53823581

1401042305 has 8 divisors (see below), whose sum is σ = 1810577832. Its totient is φ = 1034615808.

The previous prime is 1401042277. The next prime is 1401042337. The reversal of 1401042305 is 5032401041.

It can be written as a sum of positive squares in 4 ways, for example, as 282273601 + 1118768704 = 16801^2 + 33448^2 .

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 1401042305 - 214 = 1401025921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10777184 + ... + 10777313.

It is an arithmetic number, because the mean of its divisors is an integer number (226322229).

Almost surely, 21401042305 is an apocalyptic number.

It is an amenable number.

1401042305 is a deficient number, since it is larger than the sum of its proper divisors (409535527).

1401042305 is a wasteful number, since it uses less digits than its factorization.

1401042305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21554515.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1401042305 is about 37430.4996627082. The cubic root of 1401042305 is about 1118.9664958504.

Adding to 1401042305 its reverse (5032401041), we get a palindrome (6433443346).

The spelling of 1401042305 in words is "one billion, four hundred one million, forty-two thousand, three hundred five".

Divisors: 1 5 13 65 21554497 107772485 280208461 1401042305