Search a number
-
+
30987150612 = 22311832828327
BaseRepresentation
bin11100110110111110…
…100110010100010100
32221222112210100102220
4130312332212110110
51001430202304422
622122454102340
72144614301655
oct346676462424
987875710386
1030987150612
1112161490990
12600964a9b0
132bcaa537a2
1416dd5ad52c
15c1561ce5c
hex736fa6514

30987150612 has 48 divisors (see below), whose sum is σ = 79826729472. Its totient is φ = 9276909280.

The previous prime is 30987150589. The next prime is 30987150661. The reversal of 30987150612 is 21605178903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1403208 + ... + 1425119.

It is an arithmetic number, because the mean of its divisors is an integer number (1663056864).

Almost surely, 230987150612 is an apocalyptic number.

It is an amenable number.

30987150612 is an abundant number, since it is smaller than the sum of its proper divisors (48839578860).

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

30987150612 is a wasteful number, since it uses less digits than its factorization.

30987150612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828428 (or 2828426 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 30987150612 in words is "thirty billion, nine hundred eighty-seven million, one hundred fifty thousand, six hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 83 132 166 249 332 498 913 996 1826 2739 3652 5478 10956 2828327 5656654 8484981 11313308 16969962 31111597 33939924 62223194 93334791 124446388 186669582 234751141 373339164 469502282 704253423 939004564 1408506846 2582262551 2817013692 5164525102 7746787653 10329050204 15493575306 30987150612