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1375514213 = 3833358861
BaseRepresentation
bin101000111111100…
…1010111001100101
310112212021100202212
41101333022321211
510304112423323
6344254013205
746041451343
oct12177127145
93485240685
101375514213
11646495207
123247a7205
1318bc87648
14d097a993
1580b59b78
hex51fcae65

1375514213 has 4 divisors (see below), whose sum is σ = 1375876908. Its totient is φ = 1375151520.

The previous prime is 1375514201. The next prime is 1375514219. The reversal of 1375514213 is 3124155731.

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

It can be written as a sum of positive squares in 2 ways, for example, as 306355009 + 1069159204 = 17503^2 + 32698^2 .

It is a cyclic number.

It is not a de Polignac number, because 1375514213 - 24 = 1375514197 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 1375514213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375514219) 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, 175598 + ... + 183263.

It is an arithmetic number, because the mean of its divisors is an integer number (343969227).

Almost surely, 21375514213 is an apocalyptic number.

It is an amenable number.

1375514213 is a deficient number, since it is larger than the sum of its proper divisors (362695).

1375514213 is an equidigital number, since it uses as much as digits as its factorization.

1375514213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362694.

The product of its digits is 12600, while the sum is 32.

The square root of 1375514213 is about 37087.9254340277. The cubic root of 1375514213 is about 1112.1286461265.

Adding to 1375514213 its reverse (3124155731), we get a palindrome (4499669944).

The spelling of 1375514213 in words is "one billion, three hundred seventy-five million, five hundred fourteen thousand, two hundred thirteen".

Divisors: 1 3833 358861 1375514213