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30306852 = 2233172971
BaseRepresentation
bin111001110011…
…1001000100100
32010000202012000
41303213020210
530224304402
63001325300
7515414112
oct163471044
963022160
1030306852
111611aa94
12a196830
136381864
14404cab2
1529d9c1c
hex1ce7224

30306852 has 72 divisors (see below), whose sum is σ = 83553120. Its totient is φ = 9498240.

The previous prime is 30306833. The next prime is 30306863. The reversal of 30306852 is 25860303.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30727 + ... + 31697.

It is an arithmetic number, because the mean of its divisors is an integer number (1160460).

Almost surely, 230306852 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 30306852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41776560).

30306852 is an abundant number, since it is smaller than the sum of its proper divisors (53246268).

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

30306852 is a wasteful number, since it uses less digits than its factorization.

30306852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 30306852 is about 5505.1659375536. The cubic root of 30306852 is about 311.7790595560.

The spelling of 30306852 in words is "thirty million, three hundred six thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 17 18 27 34 36 51 54 68 102 108 153 204 289 306 459 578 612 867 918 971 1156 1734 1836 1942 2601 2913 3468 3884 5202 5826 7803 8739 10404 11652 15606 16507 17478 26217 31212 33014 34956 49521 52434 66028 99042 104868 148563 198084 280619 297126 445689 561238 594252 841857 891378 1122476 1683714 1782756 2525571 3367428 5051142 7576713 10102284 15153426 30306852