Search a number
-
+
30460769 is a prime number
BaseRepresentation
bin111010000110…
…0101101100001
32010022120022122
41310030231201
530244221034
63004514025
7516624623
oct164145541
963276278
1030460769
1116215699
12a24b915
136406931
14408cc13
152a1a62e
hex1d0cb61

30460769 has 2 divisors, whose sum is σ = 30460770. Its totient is φ = 30460768.

The previous prime is 30460757. The next prime is 30460799. The reversal of 30460769 is 96706403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30393169 + 67600 = 5513^2 + 260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30460769 is a prime.

It is a super-2 number, since 2×304607692 = 1855716896142722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30460709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15230384 + 15230385.

It is an arithmetic number, because the mean of its divisors is an integer number (15230385).

Almost surely, 230460769 is an apocalyptic number.

It is an amenable number.

30460769 is a deficient number, since it is larger than the sum of its proper divisors (1).

30460769 is an equidigital number, since it uses as much as digits as its factorization.

30460769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 30460769 is about 5519.1275578664. The cubic root of 30460769 is about 312.3059710738.

The spelling of 30460769 in words is "thirty million, four hundred sixty thousand, seven hundred sixty-nine".