Search a number
-
+
30278028927 = 3291097931699
BaseRepresentation
bin11100001100101101…
…100000111001111111
32220011010110020100210
4130030231200321333
5444002133411202
621524243123503
72121213666546
oct341455407177
986133406323
1030278028927
1111928181303
125a50073593
132b16b6c563
14167333d15d
15bc3247c6c
hex70cb60e7f

30278028927 has 16 divisors (see below), whose sum is σ = 41767920000. Its totient is φ = 19486916064.

The previous prime is 30278028923. The next prime is 30278028961. The reversal of 30278028927 is 72982087203.

It is not a de Polignac number, because 30278028927 - 22 = 30278028923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30278028923) 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, 939324 + ... + 971022.

It is an arithmetic number, because the mean of its divisors is an integer number (2610495000).

Almost surely, 230278028927 is an apocalyptic number.

30278028927 is a deficient number, since it is larger than the sum of its proper divisors (11489891073).

30278028927 is a wasteful number, since it uses less digits than its factorization.

30278028927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42710.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 30278028927 in words is "thirty billion, two hundred seventy-eight million, twenty-eight thousand, nine hundred twenty-seven".

Divisors: 1 3 29 87 10979 31699 32937 95097 318391 919271 955173 2757813 348023321 1044069963 10092676309 30278028927