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30529960 = 23517219139
BaseRepresentation
bin111010001110…
…1100110101000
32010110002020021
41310131212220
530303424320
63010210224
7520333426
oct164354650
963402207
1030529960
111626267a
12a283974
13642c286
1440aa116
152a30daa
hex1d1d9a8

30529960 has 96 divisors (see below), whose sum is σ = 77364000. Its totient is φ = 10810368.

The previous prime is 30529927. The next prime is 30529981. The reversal of 30529960 is 6992503.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219571 + ... + 219709.

It is an arithmetic number, because the mean of its divisors is an integer number (805875).

Almost surely, 230529960 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 30529960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38682000).

30529960 is an abundant number, since it is smaller than the sum of its proper divisors (46834040).

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

30529960 is a wasteful number, since it uses less digits than its factorization.

30529960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 30529960 is about 5525.3922937652. The cubic root of 30529960 is about 312.5422577521.

The spelling of 30529960 in words is "thirty million, five hundred twenty-nine thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 17 19 20 34 38 40 68 76 85 95 136 139 152 170 190 278 289 323 340 380 556 578 646 680 695 760 1112 1156 1292 1390 1445 1615 2312 2363 2584 2641 2780 2890 3230 4726 5282 5491 5560 5780 6460 9452 10564 10982 11560 11815 12920 13205 18904 21128 21964 23630 26410 27455 40171 43928 44897 47260 52820 54910 80342 89794 94520 105640 109820 160684 179588 200855 219640 224485 321368 359176 401710 448970 763249 803420 897940 1526498 1606840 1795880 3052996 3816245 6105992 7632490 15264980 30529960