Search a number
-
+
2485830 = 235414347
BaseRepresentation
bin1001011110111001000110
311200021220210
421132321012
51114021310
6125140250
730062214
oct11367106
94607823
102485830
111448706
129ba686
13690609
14489cb4
15341820
hex25ee46

2485830 has 64 divisors (see below), whose sum is σ = 6386688. Its totient is φ = 618240.

The previous prime is 2485807. The next prime is 2485831. The reversal of 2485830 is 385842.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2485831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52867 + ... + 52913.

It is an arithmetic number, because the mean of its divisors is an integer number (99792).

22485830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2485830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3193344).

2485830 is an abundant number, since it is smaller than the sum of its proper divisors (3900858).

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

2485830 is a wasteful number, since it uses less digits than its factorization.

2485830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 2485830 is about 1576.6515150787. The cubic root of 2485830 is about 135.4639728476.

The spelling of 2485830 in words is "two million, four hundred eighty-five thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 41 43 47 82 86 94 123 129 141 205 215 235 246 258 282 410 430 470 615 645 705 1230 1290 1410 1763 1927 2021 3526 3854 4042 5289 5781 6063 8815 9635 10105 10578 11562 12126 17630 19270 20210 26445 28905 30315 52890 57810 60630 82861 165722 248583 414305 497166 828610 1242915 2485830