Search a number
-
+
30906292998 = 2371361540679
BaseRepresentation
bin11100110010001010…
…001001101100000110
32221202220122100122110
4130302022021230012
51001244002333443
622110445041450
72142613104330
oct346212115406
987686570573
1030906292998
111211a884409
125ba6556286
132bb7082c49
1416d2962450
15c0d49a233
hex732289b06

30906292998 has 32 divisors (see below), whose sum is σ = 70694991360. Its totient is φ = 8823864960.

The previous prime is 30906292993. The next prime is 30906292999. The reversal of 30906292998 is 89929260903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30906292993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213178 + ... + 327501.

It is an arithmetic number, because the mean of its divisors is an integer number (2209218480).

Almost surely, 230906292998 is an apocalyptic number.

30906292998 is an abundant number, since it is smaller than the sum of its proper divisors (39788698362).

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

30906292998 is a wasteful number, since it uses less digits than its factorization.

30906292998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542052.

The product of its (nonzero) digits is 3779136, while the sum is 57.

The spelling of 30906292998 in words is "thirty billion, nine hundred six million, two hundred ninety-two thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 7 14 21 42 1361 2722 4083 8166 9527 19054 28581 57162 540679 1081358 1622037 3244074 3784753 7569506 11354259 22708518 735864119 1471728238 2207592357 4415184714 5151048833 10302097666 15453146499 30906292998