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30231687984 = 2434431421731
BaseRepresentation
bin11100001001111100…
…101111001100110000
32220000220020212112120
4130021330233030300
5443403303003414
621515505554240
72120112052011
oct341174571460
986026225476
1030231687984
1111903aaa703
125a38645980
132b0a395794
14166b119008
15bbe1422a9
hex709f2f330

30231687984 has 40 divisors (see below), whose sum is σ = 78274876992. Its totient is φ = 10054474560.

The previous prime is 30231687953. The next prime is 30231688061. The reversal of 30231687984 is 48978613203.

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, 689602 + ... + 732129.

Almost surely, 230231687984 is an apocalyptic number.

It is an amenable number.

30231687984 is an abundant number, since it is smaller than the sum of its proper divisors (48043189008).

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

30231687984 is a wasteful number, since it uses less digits than its factorization.

30231687984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422185 (or 1422179 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 30231687984 in words is "thirty billion, two hundred thirty-one million, six hundred eighty-seven thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 443 886 1329 1772 2658 3544 5316 7088 10632 21264 1421731 2843462 4265193 5686924 8530386 11373848 17060772 22747696 34121544 68243088 629826833 1259653666 1889480499 2519307332 3778960998 5038614664 7557921996 10077229328 15115843992 30231687984