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13455828 = 2233235417
BaseRepresentation
bin110011010101…
…000111010100
3221022121221000
4303111013110
511421041303
61200223300
7222241551
oct63250724
927277830
1013455828
117660621
12460ab30
132a31839
141b03a28
1512abda3
hexcd51d4

13455828 has 48 divisors (see below), whose sum is σ = 36408960. Its totient is φ = 4289472.

The previous prime is 13455787. The next prime is 13455853. The reversal of 13455828 is 82855431.

It is a happy number.

13455828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13455792 and 13455801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225 + ... + 5192.

It is an arithmetic number, because the mean of its divisors is an integer number (758520).

Almost surely, 213455828 is an apocalyptic number.

13455828 is a gapful number since it is divisible by the number (18) 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 13455828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18204480).

13455828 is an abundant number, since it is smaller than the sum of its proper divisors (22953132).

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

13455828 is a wasteful number, since it uses less digits than its factorization.

13455828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5453 (or 5445 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 13455828 is about 3668.2186412481. The cubic root of 13455828 is about 237.8501752223.

The spelling of 13455828 in words is "thirteen million, four hundred fifty-five thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 23 27 36 46 54 69 92 108 138 207 276 414 621 828 1242 2484 5417 10834 16251 21668 32502 48753 65004 97506 124591 146259 195012 249182 292518 373773 498364 585036 747546 1121319 1495092 2242638 3363957 4485276 6727914 13455828