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30295928 = 2313319397
BaseRepresentation
bin111001110010…
…0011101111000
32010000012012102
41303210131320
530223432203
63001202532
7515340215
oct163443570
963005172
1030295928
1116112863
12a190448
1363798b0
144048b0c
1529d6888
hex1ce4778

30295928 has 32 divisors (see below), whose sum is σ = 63154560. Its totient is φ = 13530240.

The previous prime is 30295927. The next prime is 30295939. The reversal of 30295928 is 82959203.

30295928 is nontrivially palindromic in base 5.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 30295891 and 30295900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30295927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1475 + ... + 7922.

It is an arithmetic number, because the mean of its divisors is an integer number (1973580).

Almost surely, 230295928 is an apocalyptic number.

It is an amenable number.

30295928 is an abundant number, since it is smaller than the sum of its proper divisors (32858632).

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

30295928 is a wasteful number, since it uses less digits than its factorization.

30295928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9447 (or 9443 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 30295928 is about 5504.1736891199. The cubic root of 30295928 is about 311.7415951597.

The spelling of 30295928 in words is "thirty million, two hundred ninety-five thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 13 26 31 52 62 104 124 248 403 806 1612 3224 9397 18794 37588 75176 122161 244322 291307 488644 582614 977288 1165228 2330456 3786991 7573982 15147964 30295928