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30838260 = 22354331187
BaseRepresentation
bin111010110100…
…0110111110100
32011000202010210
41311220313310
530343311020
63020545420
7523056315
oct165506764
964022123
1030838260
1116453272
12a3b2270
1365096bb
14414a60c
152a923e0
hex1d68df4

30838260 has 48 divisors (see below), whose sum is σ = 86619456. Its totient is φ = 8197632.

The previous prime is 30838253. The next prime is 30838307. The reversal of 30838260 is 6283803.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25387 + ... + 26573.

It is an arithmetic number, because the mean of its divisors is an integer number (1804572).

Almost surely, 230838260 is an apocalyptic number.

30838260 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30838260 is an abundant number, since it is smaller than the sum of its proper divisors (55781196).

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

30838260 is a wasteful number, since it uses less digits than its factorization.

30838260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632 (or 1630 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 30838260 is about 5553.2206871328. The cubic root of 30838260 is about 313.5907823240.

The spelling of 30838260 in words is "thirty million, eight hundred thirty-eight thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 433 866 1187 1299 1732 2165 2374 2598 3561 4330 4748 5196 5935 6495 7122 8660 11870 12990 14244 17805 23740 25980 35610 71220 513971 1027942 1541913 2055884 2569855 3083826 5139710 6167652 7709565 10279420 15419130 30838260