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1401321514 = 2700660757
BaseRepresentation
bin101001110000110…
…0111100000101010
310121122211111201211
41103201213200222
510332214242024
6351015103334
746504015315
oct12341474052
93548744654
101401321514
1165a01165a
12331371b4a
13194422138
14d417797c
1583056594
hex5386782a

1401321514 has 4 divisors (see below), whose sum is σ = 2101982274. Its totient is φ = 700660756.

The previous prime is 1401321511. The next prime is 1401321547. The reversal of 1401321514 is 4151231041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4151231041 = 33712318193.

It can be written as a sum of positive squares in only one way, i.e., 1023680025 + 377641489 = 31995^2 + 19433^2 .

It is a super-3 number, since 3×14013215143 (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1401321511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350330377 + ... + 350330380.

Almost surely, 21401321514 is an apocalyptic number.

1401321514 is a deficient number, since it is larger than the sum of its proper divisors (700660760).

1401321514 is an equidigital number, since it uses as much as digits as its factorization.

1401321514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700660759.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1401321514 is about 37434.2291759828. The cubic root of 1401321514 is about 1119.0408226007.

Adding to 1401321514 its reverse (4151231041), we get a palindrome (5552552555).

The spelling of 1401321514 in words is "one billion, four hundred one million, three hundred twenty-one thousand, five hundred fourteen".

Divisors: 1 2 700660757 1401321514