Search a number
-
+
30557575505 = 58968668709
BaseRepresentation
bin11100011101010111…
…111001100101010001
32220212121110200011202
4130131113321211101
51000040214404010
622012110520545
72131150051262
oct343527714521
986777420152
1030557575505
1111a60a55836
125b09806155
132b5ca58732
14169c50a969
15bdca666a5
hex71d5f9951

30557575505 has 8 divisors (see below), whose sum is σ = 37081103400. Its totient is φ = 24171385216.

The previous prime is 30557575501. The next prime is 30557575519. The reversal of 30557575505 is 50557575503.

It can be written as a sum of positive squares in 4 ways, for example, as 864771649 + 29692803856 = 29407^2 + 172316^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30557575505 - 22 = 30557575501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30557575505.

It is not an unprimeable number, because it can be changed into a prime (30557575501) 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, 34333910 + ... + 34334799.

It is an arithmetic number, because the mean of its divisors is an integer number (4635137925).

Almost surely, 230557575505 is an apocalyptic number.

It is an amenable number.

30557575505 is a deficient number, since it is larger than the sum of its proper divisors (6523527895).

30557575505 is an equidigital number, since it uses as much as digits as its factorization.

30557575505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68668803.

The product of its (nonzero) digits is 2296875, while the sum is 47.

The spelling of 30557575505 in words is "thirty billion, five hundred fifty-seven million, five hundred seventy-five thousand, five hundred five".

Divisors: 1 5 89 445 68668709 343343545 6111515101 30557575505