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30901260 = 223513173229
BaseRepresentation
bin111010111100…
…0010000001100
32011010221120010
41311320100030
530402320020
63022153220
7523441065
oct165702014
964127503
1030901260
1116496635
12a422810
13652c290
14416556c
152aa5de0
hex1d7840c

30901260 has 96 divisors (see below), whose sum is σ = 94127040. Its totient is φ = 7529472.

The previous prime is 30901237. The next prime is 30901301. The reversal of 30901260 is 6210903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134826 + ... + 135054.

It is an arithmetic number, because the mean of its divisors is an integer number (980490).

Almost surely, 230901260 is an apocalyptic number.

30901260 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30901260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47063520).

30901260 is an abundant number, since it is smaller than the sum of its proper divisors (63225780).

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

30901260 is a wasteful number, since it uses less digits than its factorization.

30901260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 30901260 is about 5558.8901770048. The cubic root of 30901260 is about 313.8041836972.

The spelling of 30901260 in words is "thirty million, nine hundred one thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 173 195 229 260 346 390 458 519 687 692 780 865 916 1038 1145 1374 1730 2076 2249 2290 2595 2748 2977 3435 3460 4498 4580 5190 5954 6747 6870 8931 8996 10380 11245 11908 13494 13740 14885 17862 22490 26988 29770 33735 35724 39617 44655 44980 59540 67470 79234 89310 118851 134940 158468 178620 198085 237702 396170 475404 515021 594255 792340 1030042 1188510 1545063 2060084 2377020 2575105 3090126 5150210 6180252 7725315 10300420 15450630 30901260