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30522016 = 257891531
BaseRepresentation
bin111010001101…
…1101010100000
32010102200100001
41310123222200
530303201031
63010105344
7520301320
oct164335240
963380301
1030522016
1116257708
12a27b254
136428785
1440a7280
152a2d861
hex1d1baa0

30522016 has 48 divisors (see below), whose sum is σ = 69491520. Its totient is φ = 12925440.

The previous prime is 30522013. The next prime is 30522029. The reversal of 30522016 is 61022503.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30521984 and 30522002.

It is not an unprimeable number, because it can be changed into a prime (30522013) 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, 19171 + ... + 20701.

It is an arithmetic number, because the mean of its divisors is an integer number (1447740).

Almost surely, 230522016 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 30522016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34745760).

30522016 is an abundant number, since it is smaller than the sum of its proper divisors (38969504).

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

30522016 is a wasteful number, since it uses less digits than its factorization.

30522016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637 (or 1629 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 30522016 is about 5524.6733840110. The cubic root of 30522016 is about 312.5151472125.

Adding to 30522016 its reverse (61022503), we get a palindrome (91544519).

The spelling of 30522016 in words is "thirty million, five hundred twenty-two thousand, sixteen".

Divisors: 1 2 4 7 8 14 16 28 32 56 89 112 178 224 356 623 712 1246 1424 1531 2492 2848 3062 4984 6124 9968 10717 12248 19936 21434 24496 42868 48992 85736 136259 171472 272518 342944 545036 953813 1090072 1907626 2180144 3815252 4360288 7630504 15261008 30522016