Search a number
-
+
30839077 is a prime number
BaseRepresentation
bin111010110100…
…1000100100101
32011000210021001
41311221010211
530343322302
63020553301
7523061563
oct165510445
964023231
1030839077
1116453945
12a3b2831
136509b99
14414aa33
152a92787
hex1d69125

30839077 has 2 divisors, whose sum is σ = 30839078. Its totient is φ = 30839076.

The previous prime is 30839023. The next prime is 30839087. The reversal of 30839077 is 77093803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25391521 + 5447556 = 5039^2 + 2334^2 .

It is a cyclic number.

It is not a de Polignac number, because 30839077 - 27 = 30838949 is a prime.

It is equal to p1906678 and since 30839077 and 1906678 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30839087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15419538 + 15419539.

It is an arithmetic number, because the mean of its divisors is an integer number (15419539).

Almost surely, 230839077 is an apocalyptic number.

It is an amenable number.

30839077 is a deficient number, since it is larger than the sum of its proper divisors (1).

30839077 is an equidigital number, since it uses as much as digits as its factorization.

30839077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 30839077 is about 5553.2942475615. The cubic root of 30839077 is about 313.5935516264.

Subtracting from 30839077 its product of nonzero digits (31752), we obtain a triangular number (30807325 = T7849).

The spelling of 30839077 in words is "thirty million, eight hundred thirty-nine thousand, seventy-seven".