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30874032 = 24327109281
BaseRepresentation
bin111010111000…
…1100110110000
32011002120012200
41311301212300
530400432112
63021423200
7523265520
oct165614660
964076180
1030874032
1116478132
12a40ab00
13651ca77
144159680
152a9ccdc
hex1d719b0

30874032 has 120 divisors (see below), whose sum is σ = 100008480. Its totient is φ = 8709120.

The previous prime is 30874003. The next prime is 30874079. The reversal of 30874032 is 23047803.

It is a junction number, because it is equal to n+sod(n) for n = 30873987 and 30874005.

It is a congruent number.

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, 109732 + ... + 110012.

It is an arithmetic number, because the mean of its divisors is an integer number (833404).

Almost surely, 230874032 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 30874032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50004240).

30874032 is an abundant number, since it is smaller than the sum of its proper divisors (69134448).

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

30874032 is a wasteful number, since it uses less digits than its factorization.

30874032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 30874032 is about 5556.4405872825. The cubic root of 30874032 is about 313.7119892789.

It can be divided in two parts, 3087 and 4032, that multiplied together give a square (12446784 = 35282).

The spelling of 30874032 in words is "thirty million, eight hundred seventy-four thousand, thirty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 109 112 126 144 168 218 252 281 327 336 436 504 562 654 763 843 872 981 1008 1124 1308 1526 1686 1744 1962 1967 2248 2289 2529 2616 3052 3372 3924 3934 4496 4578 5058 5232 5901 6104 6744 6867 7848 7868 9156 10116 11802 12208 13488 13734 15696 15736 17703 18312 20232 23604 27468 30629 31472 35406 36624 40464 47208 54936 61258 70812 91887 94416 109872 122516 141624 183774 214403 245032 275661 283248 367548 428806 490064 551322 643209 735096 857612 1102644 1286418 1470192 1715224 1929627 2205288 2572836 3430448 3859254 4410576 5145672 7718508 10291344 15437016 30874032