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1377112331 = 7196730333
BaseRepresentation
bin101001000010101…
…0001000100001011
310112222021112222102
41102011101010023
510310020043311
6344352144015
746061155520
oct12205210413
93488245872
101377112331
11647386971
1232523800b
1318c3c6b8a
14d0c75147
1580d7343b
hex5215110b

1377112331 has 4 divisors (see below), whose sum is σ = 1573842672. Its totient is φ = 1180381992.

The previous prime is 1377112309. The next prime is 1377112441. The reversal of 1377112331 is 1332117731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1332117731 = 7190302533.

It is a cyclic number.

It is not a de Polignac number, because 1377112331 - 214 = 1377095947 is a prime.

It is a super-2 number, since 2×13771123312 = 3792876744384507122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1377112294 and 1377112303.

It is not an unprimeable number, because it can be changed into a prime (1377112301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98365160 + ... + 98365173.

It is an arithmetic number, because the mean of its divisors is an integer number (393460668).

Almost surely, 21377112331 is an apocalyptic number.

1377112331 is a deficient number, since it is larger than the sum of its proper divisors (196730341).

1377112331 is an equidigital number, since it uses as much as digits as its factorization.

1377112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196730340.

The product of its digits is 2646, while the sum is 29.

The square root of 1377112331 is about 37109.4641702087. The cubic root of 1377112331 is about 1112.5591820723.

The spelling of 1377112331 in words is "one billion, three hundred seventy-seven million, one hundred twelve thousand, three hundred thirty-one".

Divisors: 1 7 196730333 1377112331