Search a number
-
+
1388327342 = 2694163671
BaseRepresentation
bin101001011000000…
…0011000110101110
310120202101100002012
41102300003012232
510320402433332
6345432401222
746255405403
oct12260030656
93522340065
101388327342
11652746976
12328b46212
1319182278c
14d25542aa
1581d3b3b2
hex52c031ae

1388327342 has 4 divisors (see below), whose sum is σ = 2082491016. Its totient is φ = 694163670.

The previous prime is 1388327333. The next prime is 1388327383. The reversal of 1388327342 is 2437238831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2437238831 = 10722777933.

It is a self number, because there is not a number n which added to its sum of digits gives 1388327342.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 347081834 + ... + 347081837.

It is an arithmetic number, because the mean of its divisors is an integer number (520622754).

Almost surely, 21388327342 is an apocalyptic number.

1388327342 is a deficient number, since it is larger than the sum of its proper divisors (694163674).

1388327342 is an equidigital number, since it uses as much as digits as its factorization.

1388327342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694163673.

The product of its digits is 193536, while the sum is 41.

The square root of 1388327342 is about 37260.2649212267. The cubic root of 1388327342 is about 1115.5711960044.

The spelling of 1388327342 in words is "one billion, three hundred eighty-eight million, three hundred twenty-seven thousand, three hundred forty-two".

Divisors: 1 2 694163671 1388327342