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30316524 = 22371073373
BaseRepresentation
bin111001110100…
…1011111101100
32010001020110020
41303221133230
530230112044
63001442140
7515454240
oct163513754
963036406
1030316524
1116127287
12a1a0350
136386094
144052420
1529dca19
hex1ce97ec

30316524 has 48 divisors (see below), whose sum is σ = 81623808. Its totient is φ = 8578368.

The previous prime is 30316523. The next prime is 30316529. The reversal of 30316524 is 42561303.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30316494 and 30316503.

It is not an unprimeable number, because it can be changed into a prime (30316523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7302 + ... + 10674.

It is an arithmetic number, because the mean of its divisors is an integer number (1700496).

Almost surely, 230316524 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 30316524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40811904).

30316524 is an abundant number, since it is smaller than the sum of its proper divisors (51307284).

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

30316524 is a wasteful number, since it uses less digits than its factorization.

30316524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494 (or 3492 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 30316524 is about 5506.0443151141. The cubic root of 30316524 is about 311.8122226432.

Adding to 30316524 its reverse (42561303), we get a palindrome (72877827).

The spelling of 30316524 in words is "thirty million, three hundred sixteen thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 107 214 321 428 642 749 1284 1498 2247 2996 3373 4494 6746 8988 10119 13492 20238 23611 40476 47222 70833 94444 141666 283332 360911 721822 1082733 1443644 2165466 2526377 4330932 5052754 7579131 10105508 15158262 30316524