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30045732505 = 525723381893
BaseRepresentation
bin11011111110110111…
…010111111010011001
32212112221100100120121
4123332313113322121
5443013201420010
621445224153241
72112363340525
oct337667277231
985487310517
1030045732505
111181903a598
1259a6308821
132aaa9b7c59
141650550d85
15bacb5e3da
hex6fedd7e99

30045732505 has 8 divisors (see below), whose sum is σ = 36195171912. Its totient is φ = 23943057408.

The previous prime is 30045732499. The next prime is 30045732529. The reversal of 30045732505 is 50523754003.

It can be written as a sum of positive squares in 4 ways, for example, as 10916906256 + 19128826249 = 104484^2 + 138307^2 .

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 30045732505 - 225 = 30012178073 is a prime.

It is a Duffinian 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, 11689662 + ... + 11692231.

It is an arithmetic number, because the mean of its divisors is an integer number (4524396489).

Almost surely, 230045732505 is an apocalyptic number.

It is an amenable number.

30045732505 is a deficient number, since it is larger than the sum of its proper divisors (6149439407).

30045732505 is a wasteful number, since it uses less digits than its factorization.

30045732505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23382155.

The product of its (nonzero) digits is 63000, while the sum is 34.

The spelling of 30045732505 in words is "thirty billion, forty-five million, seven hundred thirty-two thousand, five hundred five".

Divisors: 1 5 257 1285 23381893 116909465 6009146501 30045732505