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30471100 = 22521127701
BaseRepresentation
bin111010000111…
…1001110111100
32010100002111021
41310033032330
530300033400
63005033524
7520000012
oct164171674
963302437
1030471100
1116222430
12a2558a4
13640b54a
1440928b2
152a1d71a
hex1d0f3bc

30471100 has 36 divisors (see below), whose sum is σ = 72136008. Its totient is φ = 11080000.

The previous prime is 30471073. The next prime is 30471107. The reversal of 30471100 is 117403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30471107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12751 + ... + 14950.

It is an arithmetic number, because the mean of its divisors is an integer number (2003778).

Almost surely, 230471100 is an apocalyptic number.

It is an amenable number.

30471100 is an abundant number, since it is smaller than the sum of its proper divisors (41664908).

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

30471100 is a wasteful number, since it uses less digits than its factorization.

30471100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27726 (or 27719 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 30471100 is about 5520.0634054329. The cubic root of 30471100 is about 312.3412740598.

Adding to 30471100 its reverse (117403), we get a palindrome (30588503).

The spelling of 30471100 in words is "thirty million, four hundred seventy-one thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 27701 55402 110804 138505 277010 304711 554020 609422 692525 1218844 1385050 1523555 2770100 3047110 6094220 7617775 15235550 30471100