Search a number
-
+
30020577 = 382912071
BaseRepresentation
bin111001010000…
…1001111100001
32002111012111020
41302201033201
530141124302
62551240053
7513112356
oct162411741
962435436
1030020577
1115a449a4
12a079029
1362b1472
143db662d
15297eebc
hex1ca13e1

30020577 has 8 divisors (see below), whose sum is σ = 40079040. Its totient is φ = 19987920.

The previous prime is 30020563. The next prime is 30020581. The reversal of 30020577 is 77502003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30020577 - 24 = 30020561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30020527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3549 + ... + 8522.

It is an arithmetic number, because the mean of its divisors is an integer number (5009880).

Almost surely, 230020577 is an apocalyptic number.

It is an amenable number.

30020577 is a deficient number, since it is larger than the sum of its proper divisors (10058463).

30020577 is a wasteful number, since it uses less digits than its factorization.

30020577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12903.

The product of its (nonzero) digits is 1470, while the sum is 24.

The square root of 30020577 is about 5479.1036675719. The cubic root of 30020577 is about 310.7942760516.

The spelling of 30020577 in words is "thirty million, twenty thousand, five hundred seventy-seven".

Divisors: 1 3 829 2487 12071 36213 10006859 30020577