Search a number
-
+
69145121869796 = 227171439100947089
BaseRepresentation
bin11111011100011000110100…
…11011010100111111100100
3100001211012122102121011120002
433232030122123110333210
533030333202144313141
6403020455214200432
720364366402310220
oct1756143233247744
9301735572534502
1069145121869796
112003931075aa15
1279089554b3118
132c7748448ba4b
1413108dad93780
157ed95397be9b
hex3ee31a6d4fe4

69145121869796 has 48 divisors (see below), whose sum is σ = 146526720076800. Its totient is φ = 27871087208448.

The previous prime is 69145121869771. The next prime is 69145121869801. The reversal of 69145121869796 is 69796812154196.

It is a Smith number, since the sum of its digits (74) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49788581 + ... + 51158508.

It is an arithmetic number, because the mean of its divisors is an integer number (3052640001600).

Almost surely, 269145121869796 is an apocalyptic number.

It is an amenable number.

69145121869796 is an abundant number, since it is smaller than the sum of its proper divisors (77381598207004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69145121869796 is a wasteful number, since it uses less digits than its factorization.

69145121869796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100948556 (or 100948554 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 74.

The spelling of 69145121869796 in words is "sixty-nine trillion, one hundred forty-five billion, one hundred twenty-one million, eight hundred sixty-nine thousand, seven hundred ninety-six".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 1439 2878 5756 10073 20146 24463 40292 48926 97852 171241 342482 684964 100947089 201894178 403788356 706629623 1413259246 1716100513 2826518492 3432201026 6864402052 12012703591 24025407182 48050814364 145262861071 290525722142 581051444284 1016840027497 2033680054994 2469468638207 4067360109988 4938937276414 9877874552828 17286280467449 34572560934898 69145121869796