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548032428 = 223219801217
BaseRepresentation
bin100000101010100…
…100111110101100
31102012012221011100
4200222210332230
52110244014203
6130214123100
716403125116
oct4052447654
91365187140
10548032428
11261393969
12133650490
1389701a58
1452ada3b6
15331a4ea3
hex20aa4fac

548032428 has 36 divisors (see below), whose sum is σ = 1458216760. Its totient is φ = 173062656.

The previous prime is 548032427. The next prime is 548032531. The reversal of 548032428 is 824230845.

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 (36).

It is a junction number, because it is equal to n+sod(n) for n = 548032392 and 548032401.

It is not an unprimeable number, because it can be changed into a prime (548032423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399925 + ... + 401292.

Almost surely, 2548032428 is an apocalyptic number.

It is an amenable number.

548032428 is an abundant number, since it is smaller than the sum of its proper divisors (910184332).

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

548032428 is a wasteful number, since it uses less digits than its factorization.

548032428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801246 (or 801241 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 548032428 is about 23410.0924389461. The cubic root of 548032428 is about 818.3430889239.

The spelling of 548032428 in words is "five hundred forty-eight million, thirty-two thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 801217 1602434 2403651 3204868 4807302 7210953 9614604 14421906 15223123 28843812 30446246 45669369 60892492 91338738 137008107 182677476 274016214 548032428