Search a number
-
+
30556254232 = 2376717774583
BaseRepresentation
bin11100011101010010…
…110111000000011000
32220212111222112201201
4130131102313000120
51000034400113412
622012022323544
72131132606210
oct343522670030
986774875651
1030556254232
1111a60233079
125b092895b4
132b5c6b520a
14169c285240
15bdc8a4e57
hex71d4b7018

30556254232 has 64 divisors (see below), whose sum is σ = 66506872320. Its totient is φ = 12890009088.

The previous prime is 30556254217. The next prime is 30556254241. The reversal of 30556254232 is 23245265503.

It is a junction number, because it is equal to n+sod(n) for n = 30556254191 and 30556254200.

It is a congruent number.

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, 6665013 + ... + 6669595.

It is an arithmetic number, because the mean of its divisors is an integer number (1039169880).

Almost surely, 230556254232 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 30556254232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33253436160).

30556254232 is an abundant number, since it is smaller than the sum of its proper divisors (35950618088).

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

30556254232 is a wasteful number, since it uses less digits than its factorization.

30556254232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440 (or 6436 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 37.

The spelling of 30556254232 in words is "thirty billion, five hundred fifty-six million, two hundred fifty-four thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 56 67 134 268 469 536 938 1777 1876 3554 3752 4583 7108 9166 12439 14216 18332 24878 32081 36664 49756 64162 99512 119059 128324 238118 256648 307061 476236 614122 833413 952472 1228244 1666826 2149427 2456488 3333652 4298854 6667304 8143991 8597708 16287982 17195416 32575964 57007937 65151928 114015874 228031748 456063496 545647397 1091294794 2182589588 3819531779 4365179176 7639063558 15278127116 30556254232