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30290382 = 2332392347
BaseRepresentation
bin111001110001…
…1000111001110
32002222220121000
41303203013032
530223243012
63001121130
7515315103
oct163430716
962886530
1030290382
1116109681
12a1891a6
136377205
144046aaa
1529d4ddc
hex1ce31ce

30290382 has 32 divisors (see below), whose sum is σ = 67622400. Its totient is φ = 10050264.

The previous prime is 30290371. The next prime is 30290411. The reversal of 30290382 is 28309203.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11733 + ... + 14079.

It is an arithmetic number, because the mean of its divisors is an integer number (2113200).

Almost surely, 230290382 is an apocalyptic number.

30290382 is an abundant number, since it is smaller than the sum of its proper divisors (37332018).

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

30290382 is a wasteful number, since it uses less digits than its factorization.

30290382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597 (or 2591 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30290382 is about 5503.6698665527. The cubic root of 30290382 is about 311.7225714326.

Adding to 30290382 its reverse (28309203), we get a palindrome (58599585).

The spelling of 30290382 in words is "thirty million, two hundred ninety thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 18 27 54 239 478 717 1434 2151 2347 4302 4694 6453 7041 12906 14082 21123 42246 63369 126738 560933 1121866 1682799 3365598 5048397 10096794 15145191 30290382