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13270620 = 22351120107
BaseRepresentation
bin110010100111…
…111001011100
3220222012212110
4302213321130
511344124440
61152234020
7220540566
oct62477134
926865773
1013270620
117544460
12453b910
13299844c
141a96336
151272080
hexca7e5c

13270620 has 48 divisors (see below), whose sum is σ = 40537728. Its totient is φ = 3216960.

The previous prime is 13270619. The next prime is 13270627. The reversal of 13270620 is 2607231.

It is a happy number.

It is a super-2 number, since 2×132706202 = 352218710368800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13270627) 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, 9394 + ... + 10713.

It is an arithmetic number, because the mean of its divisors is an integer number (844536).

Almost surely, 213270620 is an apocalyptic number.

13270620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13270620 is an abundant number, since it is smaller than the sum of its proper divisors (27267108).

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

13270620 is a wasteful number, since it uses less digits than its factorization.

13270620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20130 (or 20128 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 13270620 is about 3642.8862183714. The cubic root of 13270620 is about 236.7538614988.

Adding to 13270620 its reverse (2607231), we get a palindrome (15877851).

The spelling of 13270620 in words is "thirteen million, two hundred seventy thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 20107 40214 60321 80428 100535 120642 201070 221177 241284 301605 402140 442354 603210 663531 884708 1105885 1206420 1327062 2211770 2654124 3317655 4423540 6635310 13270620