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3135138311 = 5092961559
BaseRepresentation
bin1011101011011110…
…0110101000000111
322002111022112020202
42322313212220013
522410043411221
61235032521115
7140456143634
oct27267465007
98074275222
103135138311
1113697818a8
12735b5019b
133ac6aba36
1421a54318b
15135389d0b
hexbade6a07

3135138311 has 4 divisors (see below), whose sum is σ = 3135250800. Its totient is φ = 3135025824.

The previous prime is 3135138233. The next prime is 3135138313. The reversal of 3135138311 is 1138315313.

It is a happy number.

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: 1138315313 = 2897392929.

It is a cyclic number.

It is not a de Polignac number, because 3135138311 - 230 = 2061396487 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 (3135138313) 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, 20150 + ... + 81708.

It is an arithmetic number, because the mean of its divisors is an integer number (783812700).

Almost surely, 23135138311 is an apocalyptic number.

3135138311 is a deficient number, since it is larger than the sum of its proper divisors (112489).

3135138311 is an equidigital number, since it uses as much as digits as its factorization.

3135138311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112488.

The product of its digits is 3240, while the sum is 29.

The square root of 3135138311 is about 55992.3058196392. The cubic root of 3135138311 is about 1463.5882078049.

The spelling of 3135138311 in words is "three billion, one hundred thirty-five million, one hundred thirty-eight thousand, three hundred eleven".

Divisors: 1 50929 61559 3135138311