Search a number
-
+
1380917729798 = 21756873714139
BaseRepresentation
bin10100000110000101000…
…111000101101000000110
311220000101112100000211122
4110012011013011220012
5140111104414323143
62534215043233542
7201524300014145
oct24060507055006
94800345300748
101380917729798
1149270a070252
121a376a6788b2
13a02b23c2929
144aba017775c
1525dc2c73c68
hex141851c5a06

1380917729798 has 16 divisors (see below), whose sum is σ = 2193263911440. Its totient is φ = 649831301376.

The previous prime is 1380917729761. The next prime is 1380917729801. The reversal of 1380917729798 is 8979277190831.

It is a congruent number.

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, 1576613 + ... + 2290751.

It is an arithmetic number, because the mean of its divisors is an integer number (137078994465).

Almost surely, 21380917729798 is an apocalyptic number.

1380917729798 is a deficient number, since it is larger than the sum of its proper divisors (812346181642).

1380917729798 is a wasteful number, since it uses less digits than its factorization.

1380917729798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771031.

The product of its (nonzero) digits is 96018048, while the sum is 71.

The spelling of 1380917729798 in words is "one trillion, three hundred eighty billion, nine hundred seventeen million, seven hundred twenty-nine thousand, seven hundred ninety-eight".

Divisors: 1 2 17 34 56873 113746 714139 966841 1428278 1933682 12140363 24280726 40615227347 81230454694 690458864899 1380917729798