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1275275107 = 1505384719
BaseRepresentation
bin100110000000011…
…0010011101100011
310021212122200120101
41030000302131203
510102432300412
6330313323231
743413442141
oct11400623543
93255580511
101275275107
115a4950077
122b7106517
1317428c072
14c1526591
1576e59457
hex4c032763

1275275107 has 4 divisors (see below), whose sum is σ = 1275374880. Its totient is φ = 1275175336.

The previous prime is 1275275083. The next prime is 1275275153. The reversal of 1275275107 is 7015725721.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7015725721 = 17773948073.

It is a cyclic number.

It is not a de Polignac number, because 1275275107 - 219 = 1274750819 is a prime.

It is a super-2 number, since 2×12752751072 = 3252653197067722898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1275270107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27307 + ... + 57412.

It is an arithmetic number, because the mean of its divisors is an integer number (318843720).

Almost surely, 21275275107 is an apocalyptic number.

1275275107 is a deficient number, since it is larger than the sum of its proper divisors (99773).

1275275107 is an equidigital number, since it uses as much as digits as its factorization.

1275275107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99772.

The product of its (nonzero) digits is 34300, while the sum is 37.

The square root of 1275275107 is about 35710.9942034662. The cubic root of 1275275107 is about 1084.4294272576.

The spelling of 1275275107 in words is "one billion, two hundred seventy-five million, two hundred seventy-five thousand, one hundred seven".

Divisors: 1 15053 84719 1275275107