Search a number
-
+
30790160646 = 237733099063
BaseRepresentation
bin11100101011001111…
…001001000100000110
32221110211010020000020
4130223033021010012
51001024240120041
622051140000010
72140003022130
oct345317110406
987424106006
1030790160646
1112070274463
125b73690006
132b98cb158b
1416c1372050
15c031aa866
hex72b3c9106

30790160646 has 16 divisors (see below), whose sum is σ = 70377510144. Its totient is φ = 8797188744.

The previous prime is 30790160593. The next prime is 30790160663. The reversal of 30790160646 is 64606109703.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 733099063 = 30790160646 / (3 + 0 + 7 + 9 + 0 + 1 + 6 + 0 + 6 + 4 + 6).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30790160598 and 30790160607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366549490 + ... + 366549573.

It is an arithmetic number, because the mean of its divisors is an integer number (4398594384).

Almost surely, 230790160646 is an apocalyptic number.

30790160646 is an abundant number, since it is smaller than the sum of its proper divisors (39587349498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30790160646 is a wasteful number, since it uses less digits than its factorization.

30790160646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733099075.

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 30790160646 in words is "thirty billion, seven hundred ninety million, one hundred sixty thousand, six hundred forty-six".

Divisors: 1 2 3 6 7 14 21 42 733099063 1466198126 2199297189 4398594378 5131693441 10263386882 15395080323 30790160646