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1375025213 = 6203221671
BaseRepresentation
bin101000111110101…
…0011100000111101
310112211100111222202
41101331103200331
510304001301323
6344235321245
746034343602
oct12175234075
93484314882
101375025213
11646190881
123245b0225
1318bb45bb3
14d08906a9
1580aaed28
hex51f5383d

1375025213 has 4 divisors (see below), whose sum is σ = 1375253088. Its totient is φ = 1374797340.

The previous prime is 1375025203. The next prime is 1375025237. The reversal of 1375025213 is 3125205731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1375025213 - 212 = 1375021117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375025203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104633 + ... + 117038.

It is an arithmetic number, because the mean of its divisors is an integer number (343813272).

Almost surely, 21375025213 is an apocalyptic number.

It is an amenable number.

1375025213 is a deficient number, since it is larger than the sum of its proper divisors (227875).

1375025213 is an equidigital number, since it uses as much as digits as its factorization.

1375025213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227874.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 1375025213 is about 37081.3324059425. The cubic root of 1375025213 is about 1111.9968419958.

The spelling of 1375025213 in words is "one billion, three hundred seventy-five million, twenty-five thousand, two hundred thirteen".

Divisors: 1 6203 221671 1375025213