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1401304211 = 6521214891
BaseRepresentation
bin101001110000110…
…0011010010010011
310121122210121222222
41103201203102103
510332213213321
6351014451255
746503614006
oct12341432223
93548717888
101401304211
11659aaa65a
12331363b2b
131944172b8
14d417153d
15830513ab
hex53863493

1401304211 has 4 divisors (see below), whose sum is σ = 1401525624. Its totient is φ = 1401082800.

The previous prime is 1401304171. The next prime is 1401304213. The reversal of 1401304211 is 1124031041.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1401304211 - 218 = 1401042067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401304211.

It is not an unprimeable number, because it can be changed into a prime (1401304213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100925 + ... + 113966.

It is an arithmetic number, because the mean of its divisors is an integer number (350381406).

Almost surely, 21401304211 is an apocalyptic number.

1401304211 is a deficient number, since it is larger than the sum of its proper divisors (221413).

1401304211 is an equidigital number, since it uses as much as digits as its factorization.

1401304211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221412.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1401304211 is about 37433.9980632580. The cubic root of 1401304211 is about 1119.0362167476.

Adding to 1401304211 its reverse (1124031041), we get a palindrome (2525335252).

The spelling of 1401304211 in words is "one billion, four hundred one million, three hundred four thousand, two hundred eleven".

Divisors: 1 6521 214891 1401304211