Search a number
-
+
30572061072 = 2437131694567
BaseRepresentation
bin11100011110001111…
…001010000110010000
32220220121201121122020
4130132033022012100
51000102421423242
622013345211440
72131414142250
oct343617120620
986817647566
1030572061072
1111a69149a83
125b12630b80
132b62a5ab87
1416a03db960
15bdde786ec
hex71e3ca190

30572061072 has 80 divisors (see below), whose sum is σ = 90949512192. Its totient is φ = 8668183680.

The previous prime is 30572061071. The next prime is 30572061083. The reversal of 30572061072 is 27016027503.

It is not an unprimeable number, because it can be changed into a prime (30572061071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303268 + ... + 391299.

Almost surely, 230572061072 is an apocalyptic number.

It is an amenable number.

30572061072 is an abundant number, since it is smaller than the sum of its proper divisors (60377451120).

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

30572061072 is a wasteful number, since it uses less digits than its factorization.

30572061072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694716 (or 694710 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 33.

Adding to 30572061072 its reverse (27016027503), we get a palindrome (57588088575).

The spelling of 30572061072 in words is "thirty billion, five hundred seventy-two million, sixty-one thousand, seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 131 168 262 336 393 524 786 917 1048 1572 1834 2096 2751 3144 3668 5502 6288 7336 11004 14672 22008 44016 694567 1389134 2083701 2778268 4167402 4861969 5556536 8334804 9723938 11113072 14585907 16669608 19447876 29171814 33339216 38895752 58343628 77791504 90988277 116687256 181976554 233374512 272964831 363953108 545929662 636917939 727906216 1091859324 1273835878 1455812432 1910753817 2183718648 2547671756 3821507634 4367437296 5095343512 7643015268 10190687024 15286030536 30572061072