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30472332 = 223112310037
BaseRepresentation
bin111010000111…
…1100010001100
32010100011011220
41310033202030
530300103312
63005043340
7520003422
oct164174214
963304156
1030472332
1116223350
12a256550
13640bc87
144093112
152a1dc8c
hex1d0f88c

30472332 has 48 divisors (see below), whose sum is σ = 80946432. Its totient is φ = 8831680.

The previous prime is 30472327. The next prime is 30472339. The reversal of 30472332 is 23327403.

It is a happy number.

It is a super-3 number, since 3×304723323 (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30472339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1983 + ... + 8054.

It is an arithmetic number, because the mean of its divisors is an integer number (1686384).

Almost surely, 230472332 is an apocalyptic number.

It is an amenable number.

30472332 is an abundant number, since it is smaller than the sum of its proper divisors (50474100).

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

30472332 is a wasteful number, since it uses less digits than its factorization.

30472332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10078 (or 10076 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 30472332 is about 5520.1749972261. The cubic root of 30472332 is about 312.3454835048.

Adding to 30472332 its reverse (23327403), we get a palindrome (53799735).

Subtracting from 30472332 its reverse (23327403), we obtain a square (7144929 = 26732).

The spelling of 30472332 in words is "thirty million, four hundred seventy-two thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 11 12 22 23 33 44 46 66 69 92 132 138 253 276 506 759 1012 1518 3036 10037 20074 30111 40148 60222 110407 120444 220814 230851 331221 441628 461702 662442 692553 923404 1324884 1385106 2539361 2770212 5078722 7618083 10157444 15236166 30472332