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30880332 = 2233740847
BaseRepresentation
bin111010111001…
…1001001001100
32011002212212000
41311303021030
530401132312
63021512300
7523323060
oct165631114
964085760
1030880332
111648193a
12a412690
1365228b2
14415baa0
152a9eadc
hex1d7324c

30880332 has 48 divisors (see below), whose sum is σ = 91499520. Its totient is φ = 8822736.

The previous prime is 30880319. The next prime is 30880337. The reversal of 30880332 is 23308803.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 30880296 and 30880305.

It is not an unprimeable number, because it can be changed into a prime (30880337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19668 + ... + 21179.

It is an arithmetic number, because the mean of its divisors is an integer number (1906240).

Almost surely, 230880332 is an apocalyptic number.

It is an amenable number.

30880332 is an abundant number, since it is smaller than the sum of its proper divisors (60619188).

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

30880332 is a wasteful number, since it uses less digits than its factorization.

30880332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40867 (or 40859 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 30880332 is about 5557.0074680533. The cubic root of 30880332 is about 313.7333259923.

The spelling of 30880332 in words is "thirty million, eight hundred eighty thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 40847 81694 122541 163388 245082 285929 367623 490164 571858 735246 857787 1102869 1143716 1470492 1715574 2205738 2573361 3431148 4411476 5146722 7720083 10293444 15440166 30880332