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1401111413 = 13344931249
BaseRepresentation
bin101001110000011…
…0100001101110101
310121122102211112022
41103200310031311
510332141031123
6351010402525
746502151632
oct12340641565
93548384468
101401111413
11659988819
12331290445
1319437a610
14d4121189
15830141c8
hex53834375

1401111413 has 8 divisors (see below), whose sum is σ = 1509375000. Its totient is φ = 1292917248.

The previous prime is 1401111403. The next prime is 1401111443. The reversal of 1401111413 is 3141111041.

It can be written as a sum of positive squares in 4 ways, for example, as 9597604 + 1391513809 = 3098^2 + 37303^2 .

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 1401111413 - 28 = 1401111157 is a prime.

It is a super-2 number, since 2×14011114132 = 3926226383277713138, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1401111391 and 1401111400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401111403) 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, 29213 + ... + 60461.

It is an arithmetic number, because the mean of its divisors is an integer number (188671875).

Almost surely, 21401111413 is an apocalyptic number.

1401111413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1401111413 is a deficient number, since it is larger than the sum of its proper divisors (108263587).

1401111413 is a wasteful number, since it uses less digits than its factorization.

1401111413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34711.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1401111413 is about 37431.4228022393. The cubic root of 1401111413 is about 1118.9848936449.

Adding to 1401111413 its reverse (3141111041), we get a palindrome (4542222454).

The spelling of 1401111413 in words is "one billion, four hundred one million, one hundred eleven thousand, four hundred thirteen".

Divisors: 1 13 3449 31249 44837 406237 107777801 1401111413