Search a number
-
+
1380881330 = 25971423589
BaseRepresentation
bin101001001001110…
…1001001110110010
310120020101001001222
41102103221032302
510312001200310
6345005025042
746135204043
oct12223511662
93506331058
101380881330
11649520644
12326555182
1319011655a
14d15768ca
158136a055
hex524e93b2

1380881330 has 16 divisors (see below), whose sum is σ = 2511212760. Its totient is φ = 546657792.

The previous prime is 1380881311. The next prime is 1380881351. The reversal of 1380881330 is 331880831.

It can be written as a sum of positive squares in 4 ways, for example, as 1147922161 + 232959169 = 33881^2 + 15263^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710825 + ... + 712764.

Almost surely, 21380881330 is an apocalyptic number.

1380881330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380881330 is a deficient number, since it is larger than the sum of its proper divisors (1130331430).

1380881330 is a wasteful number, since it uses less digits than its factorization.

1380881330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423693.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1380881330 is about 37160.2116517116. The cubic root of 1380881330 is about 1113.5732399403.

The spelling of 1380881330 in words is "one billion, three hundred eighty million, eight hundred eighty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 97 194 485 970 1423589 2847178 7117945 14235890 138088133 276176266 690440665 1380881330