Search a number
-
+
30211323020 = 22573163126949
BaseRepresentation
bin11100001000101111…
…000011010010001100
32212222110221020001122
4130020233003102030
5443333044314040
621513501300112
72116444002644
oct341057032214
985873836048
1030211323020
11118a356015a
125a31864638
132b060b51c8
141668537524
15bbc46d1b5
hex708bc348c

30211323020 has 48 divisors (see below), whose sum is σ = 64707938400. Its totient is φ = 11845771776.

The previous prime is 30211323007. The next prime is 30211323053. The reversal of 30211323020 is 2032311203.

It is a self number, because there is not a number n which added to its sum of digits gives 30211323020.

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, 174506 + ... + 301454.

It is an arithmetic number, because the mean of its divisors is an integer number (1348082050).

Almost surely, 230211323020 is an apocalyptic number.

It is an amenable number.

30211323020 is an abundant number, since it is smaller than the sum of its proper divisors (34496615380).

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

30211323020 is a wasteful number, since it uses less digits than its factorization.

30211323020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127194 (or 127192 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30211323020 its reverse (2032311203), we get a palindrome (32243634223).

The spelling of 30211323020 in words is "thirty billion, two hundred eleven million, three hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 73 146 163 292 326 365 652 730 815 1460 1630 3260 11899 23798 47596 59495 118990 126949 237980 253898 507796 634745 1269490 2538980 9267277 18534554 20692687 37069108 41385374 46336385 82770748 92672770 103463435 185345540 206926870 413853740 1510566151 3021132302 6042264604 7552830755 15105661510 30211323020