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30556652250 = 235378751769
BaseRepresentation
bin11100011101010100…
…011000001011011010
32220212112201202201010
4130131110120023122
51000040000333000
622012035034350
72131136154465
oct343524301332
986775652633
1030556652250
1111a60485113
125b0943b9b6
132b5c7c4427
14169c34a2dc
15bdc932d50
hex71d5182da

30556652250 has 64 divisors (see below), whose sum is σ = 76367790720. Its totient is φ = 8137929600.

The previous prime is 30556652233. The next prime is 30556652251. The reversal of 30556652250 is 5225665503.

It is a junction number, because it is equal to n+sod(n) for n = 30556652199 and 30556652208.

It is not an unprimeable number, because it can be changed into a prime (30556652251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 564366 + ... + 616134.

It is an arithmetic number, because the mean of its divisors is an integer number (1193246730).

Almost surely, 230556652250 is an apocalyptic number.

30556652250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30556652250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38183895360).

30556652250 is an abundant number, since it is smaller than the sum of its proper divisors (45811138470).

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

30556652250 is a wasteful number, since it uses less digits than its factorization.

30556652250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52576 (or 52566 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 30556652250 in words is "thirty billion, five hundred fifty-six million, six hundred fifty-two thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 125 150 250 375 750 787 1574 2361 3935 4722 7870 11805 19675 23610 39350 51769 59025 98375 103538 118050 155307 196750 258845 295125 310614 517690 590250 776535 1294225 1553070 2588450 3882675 6471125 7765350 12942250 19413375 38826750 40742203 81484406 122226609 203711015 244453218 407422030 611133045 1018555075 1222266090 2037110150 3055665225 5092775375 6111330450 10185550750 15278326125 30556652250