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8930380 = 2251971331
BaseRepresentation
bin100010000100…
…010001001100
3121210201011211
4202010101030
54241233010
6515224204
7135623044
oct42042114
917721154
108930380
11504a588
122ba8064
131b08a64
141286724
15bb608a
hex88444c

8930380 has 48 divisors (see below), whose sum is σ = 20079360. Its totient is φ = 3326400.

The previous prime is 8930353. The next prime is 8930413. The reversal of 8930380 is 830398.

8930380 = T95 + T96 + ... + T378.

8930380 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26815 + ... + 27145.

It is an arithmetic number, because the mean of its divisors is an integer number (418320).

Almost surely, 28930380 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 8930380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10039680).

8930380 is an abundant number, since it is smaller than the sum of its proper divisors (11148980).

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

8930380 is a wasteful number, since it uses less digits than its factorization.

8930380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 8930380 is about 2988.3741398961. The cubic root of 8930380 is about 207.4706398678.

The spelling of 8930380 in words is "eight million, nine hundred thirty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 71 76 95 142 190 284 331 355 380 662 710 1324 1349 1420 1655 2698 3310 5396 6289 6620 6745 12578 13490 23501 25156 26980 31445 47002 62890 94004 117505 125780 235010 446519 470020 893038 1786076 2232595 4465190 8930380