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253030620 = 223515726861
BaseRepresentation
bin11110001010011…
…11000011011100
3122122010021202110
433011033003130
51004233434440
641035154020
76161503413
oct1705170334
9578107673
10253030620
1111a913717
12708a5910
1340563c7b
142586847a
1517332080
hexf14f0dc

253030620 has 48 divisors (see below), whose sum is σ = 713024928. Its totient is φ = 67042560.

The previous prime is 253030571. The next prime is 253030627. The reversal of 253030620 is 26030352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253030627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4011 + ... + 22850.

It is an arithmetic number, because the mean of its divisors is an integer number (14854686).

Almost surely, 2253030620 is an apocalyptic number.

253030620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253030620 is an abundant number, since it is smaller than the sum of its proper divisors (459994308).

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

253030620 is a wasteful number, since it uses less digits than its factorization.

253030620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27030 (or 27028 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 253030620 is about 15906.9362229186. The cubic root of 253030620 is about 632.4958687831.

Adding to 253030620 its reverse (26030352), we get a palindrome (279060972).

The spelling of 253030620 in words is "two hundred fifty-three million, thirty thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 157 314 471 628 785 942 1570 1884 2355 3140 4710 9420 26861 53722 80583 107444 134305 161166 268610 322332 402915 537220 805830 1611660 4217177 8434354 12651531 16868708 21085885 25303062 42171770 50606124 63257655 84343540 126515310 253030620