Search a number
-
+
30922167409 = 72251212
BaseRepresentation
bin11100110011000110…
…101101010001110001
32221211000111212020121
4130303012231101301
51001312033324114
622112213210241
72143165041400
oct346306552161
987730455217
1030922167409
1112128837061
125bab930981
132bba4505a3
1416d4ad5637
15c0ea83a24
hex7331ad471

30922167409 has 9 divisors (see below), whose sum is σ = 35972116491. Its totient is φ = 26503659840.

The previous prime is 30922167377. The next prime is 30922167467. The reversal of 30922167409 is 90476122903.

The square root of 30922167409 is 175847.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 14042961009 + 16879206400 = 118503^2 + 129920^2 .

It is not a de Polignac number, because 30922167409 - 25 = 30922167377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30922167499) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1218369 + ... + 1243489.

Almost surely, 230922167409 is an apocalyptic number.

30922167409 is the 175847-th square number.

30922167409 is the 87924-th centered octagonal number.

It is an amenable number.

30922167409 is a deficient number, since it is larger than the sum of its proper divisors (5049949082).

30922167409 is an frugal number, since it uses more digits than its factorization.

30922167409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50256 (or 25128 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 30922167409 in words is "thirty billion, nine hundred twenty-two million, one hundred sixty-seven thousand, four hundred nine".

Divisors: 1 7 49 25121 175847 1230929 631064641 4417452487 30922167409