| Base | Representation |
|---|---|
| bin | 110011101100… |
| … | …100110010100 |
| 3 | 221111111212200 |
| 4 | 303230212110 |
| 5 | 11432131040 |
| 6 | 1202244500 |
| 7 | 223122156 |
| oct | 63544624 |
| 9 | 27444780 |
| 10 | 13552020 |
| 11 | 7716919 |
| 12 | 4656730 |
| 13 | 2a66561 |
| 14 | 1b2aad6 |
| 15 | 12ca630 |
| hex | cec994 |
13552020 has 36 divisors (see below), whose sum is σ = 41108340. Its totient is φ = 3613824.
The previous prime is 13552001. The next prime is 13552039. The reversal of 13552020 is 2025531.
It is a happy number.
13552020 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (13552001) and next prime (13552039).
It can be written as a sum of positive squares in 2 ways, for example, as 4334724 + 9217296 = 2082^2 + 3036^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 13551984 and 13552002.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37465 + ... + 37824.
Almost surely, 213552020 is an apocalyptic number.
13552020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13552020 is an abundant number, since it is smaller than the sum of its proper divisors (27556320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13552020 is a wasteful number, since it uses less digits than its factorization.
13552020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75304 (or 75299 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 18.
The square root of 13552020 is about 3681.3068331776. The cubic root of 13552020 is about 238.4156050698.
Adding to 13552020 its reverse (2025531), we get a palindrome (15577551).
It can be divided in two parts, 1355 and 2020, that added together give a cube (3375 = 153).
The spelling of 13552020 in words is "thirteen million, five hundred fifty-two thousand, twenty".
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