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548872856 = 23731421751
BaseRepresentation
bin100000101101110…
…010001010011000
31102020210122000022
4200231302022120
52111002412411
6130244130012
716413225260
oct4055621230
91366718008
10548872856
11261908334
12133996908
138993744c
1452c787a0
15332bdedb
hex20b72298

548872856 has 64 divisors (see below), whose sum is σ = 1218600960. Its totient is φ = 226800000.

The previous prime is 548872801. The next prime is 548872859. The reversal of 548872856 is 658278845.

It is a super-2 number, since 2×5488728562 = 602522824107193472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 548872798 and 548872807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548872859) 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, 730481 + ... + 731231.

It is an arithmetic number, because the mean of its divisors is an integer number (19040640).

Almost surely, 2548872856 is an apocalyptic number.

548872856 is a gapful number since it is divisible by the number (56) 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 548872856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609300480).

548872856 is an abundant number, since it is smaller than the sum of its proper divisors (669728104).

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

548872856 is a wasteful number, since it uses less digits than its factorization.

548872856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216 (or 1212 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 53.

The square root of 548872856 is about 23428.0356837700. The cubic root of 548872856 is about 818.7611950686.

The spelling of 548872856 in words is "five hundred forty-eight million, eight hundred seventy-two thousand, eight hundred fifty-six".

Divisors: 1 2 4 7 8 14 28 31 56 62 124 217 248 421 434 751 842 868 1502 1684 1736 2947 3004 3368 5257 5894 6008 10514 11788 13051 21028 23281 23576 26102 42056 46562 52204 91357 93124 104408 162967 182714 186248 316171 325934 365428 632342 651868 730856 1264684 1303736 2213197 2529368 4426394 8852788 9801301 17705576 19602602 39205204 68609107 78410408 137218214 274436428 548872856