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20135060 = 22511194817
BaseRepresentation
bin100110011001…
…1110010010100
31101212222002222
41030303302110
520123310220
61555321512
7333100541
oct114636224
941788088
1020135060
1110402850
1268b0298
13422ca4a
142961bc8
151b7ae25
hex1333c94

20135060 has 48 divisors (see below), whose sum is σ = 48565440. Its totient is φ = 6935040.

The previous prime is 20135047. The next prime is 20135069. The reversal of 20135060 is 6053102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135069) 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, 1772 + ... + 6588.

It is an arithmetic number, because the mean of its divisors is an integer number (1011780).

Almost surely, 220135060 is an apocalyptic number.

20135060 is a gapful number since it is divisible by the number (20) 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 20135060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24282720).

20135060 is an abundant number, since it is smaller than the sum of its proper divisors (28430380).

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

20135060 is a wasteful number, since it uses less digits than its factorization.

20135060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4856 (or 4854 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 20135060 is about 4487.2107149097. The cubic root of 20135060 is about 272.0514068062.

Adding to 20135060 its reverse (6053102), we get a palindrome (26188162).

The spelling of 20135060 in words is "twenty million, one hundred thirty-five thousand, sixty".

Divisors: 1 2 4 5 10 11 19 20 22 38 44 55 76 95 110 190 209 220 380 418 836 1045 2090 4180 4817 9634 19268 24085 48170 52987 91523 96340 105974 183046 211948 264935 366092 457615 529870 915230 1006753 1059740 1830460 2013506 4027012 5033765 10067530 20135060