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30634542984 = 23331163725153
BaseRepresentation
bin11100100001111101…
…100000011110001000
32221001222022000201010
4130201331200132020
51000214420333414
622023500323520
72133103214253
oct344175403610
987058260633
1030634542984
1111aa0445621
125b2b5435a0
132b72996716
1416a882409a
15be46bb959
hex721f60788

30634542984 has 64 divisors (see below), whose sum is σ = 79108323840. Its totient is φ = 9875681280.

The previous prime is 30634542971. The next prime is 30634543001. The reversal of 30634542984 is 48924543603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1205352 + ... + 1230504.

It is an arithmetic number, because the mean of its divisors is an integer number (1236067560).

Almost surely, 230634542984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30634542984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39554161920).

30634542984 is an abundant number, since it is smaller than the sum of its proper divisors (48473780856).

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

30634542984 is a wasteful number, since it uses less digits than its factorization.

30634542984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26830 (or 26826 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 30634542984 in words is "thirty billion, six hundred thirty-four million, five hundred forty-two thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 24 31 62 93 124 186 248 372 744 1637 3274 4911 6548 9822 13096 19644 25153 39288 50306 50747 75459 100612 101494 150918 152241 201224 202988 301836 304482 405976 603672 608964 779743 1217928 1559486 2339229 3118972 4678458 6237944 9356916 18713832 41175461 82350922 123526383 164701844 247052766 329403688 494105532 988211064 1276439291 2552878582 3829317873 5105757164 7658635746 10211514328 15317271492 30634542984