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30852072 = 23321313271
BaseRepresentation
bin111010110110…
…0001111101000
32011001110002100
41311230033220
530344231242
63021133400
7523144506
oct165541750
964043070
1030852072
1116462689
12a3ba260
136512a84
144151676
152a9654c
hex1d6c3e8

30852072 has 48 divisors (see below), whose sum is σ = 84221280. Its totient is φ = 10202400.

The previous prime is 30852071. The next prime is 30852077. The reversal of 30852072 is 27025803.

It is not an unprimeable number, because it can be changed into a prime (30852071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7797 + ... + 11067.

It is an arithmetic number, because the mean of its divisors is an integer number (1754610).

Almost surely, 230852072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30852072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42110640).

30852072 is an abundant number, since it is smaller than the sum of its proper divisors (53369208).

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

30852072 is a wasteful number, since it uses less digits than its factorization.

30852072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414 (or 3407 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 30852072 is about 5554.4641505729. The cubic root of 30852072 is about 313.6375928920.

Adding to 30852072 its reverse (27025803), we get a palindrome (57877875).

The spelling of 30852072 in words is "thirty million, eight hundred fifty-two thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 131 262 393 524 786 1048 1179 1572 2358 3144 3271 4716 6542 9432 9813 13084 19626 26168 29439 39252 58878 78504 117756 235512 428501 857002 1285503 1714004 2571006 3428008 3856509 5142012 7713018 10284024 15426036 30852072