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30892352 = 264161193
BaseRepresentation
bin111010111011…
…0000101000000
32011010111100012
41311312011000
530402023402
63022044052
7523403111
oct165660500
964114305
1030892352
111648a977
12a419628
1365281ca
144162208
152aa3452
hex1d76140

30892352 has 56 divisors (see below), whose sum is σ = 64157352. Its totient is φ = 14745600.

The previous prime is 30892331. The next prime is 30892363. The reversal of 30892352 is 25329803.

It can be written as a sum of positive squares in 4 ways, for example, as 3182656 + 27709696 = 1784^2 + 5264^2 .

It is a super-3 number, since 3×308923523 (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159968 + ... + 160160.

It is an arithmetic number, because the mean of its divisors is an integer number (1145667).

Almost surely, 230892352 is an apocalyptic number.

30892352 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30892352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32078676).

30892352 is an abundant number, since it is smaller than the sum of its proper divisors (33265000).

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

30892352 is a wasteful number, since it uses less digits than its factorization.

30892352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 30892352 is about 5558.0888801817. The cubic root of 30892352 is about 313.7740270378.

The spelling of 30892352 in words is "thirty million, eight hundred ninety-two thousand, three hundred fifty-two".

Divisors: 1 2 4 8 16 32 41 61 64 82 122 164 193 244 328 386 488 656 772 976 1312 1544 1952 2501 2624 3088 3904 5002 6176 7913 10004 11773 12352 15826 20008 23546 31652 40016 47092 63304 80032 94184 126608 160064 188368 253216 376736 482693 506432 753472 965386 1930772 3861544 7723088 15446176 30892352