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28603460 = 2258317231
BaseRepresentation
bin110110100011…
…1010001000100
31222211012120102
41231013101010
524310302320
62501023232
7465061004
oct155072104
958735512
1028603460
1115167226
1296b4b18
135c06432
143b28004
1527a0175
hex1b47444

28603460 has 24 divisors (see below), whose sum is σ = 60794496. Its totient is φ = 11302880.

The previous prime is 28603459. The next prime is 28603481. The reversal of 28603460 is 6430682.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6956 + ... + 10275.

It is an arithmetic number, because the mean of its divisors is an integer number (2533104).

Almost surely, 228603460 is an apocalyptic number.

28603460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28603460 is an abundant number, since it is smaller than the sum of its proper divisors (32191036).

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

28603460 is a wasteful number, since it uses less digits than its factorization.

28603460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17323 (or 17321 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 28603460 is about 5348.2202647236. The cubic root of 28603460 is about 305.8249101583.

The spelling of 28603460 in words is "twenty-eight million, six hundred three thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 83 166 332 415 830 1660 17231 34462 68924 86155 172310 344620 1430173 2860346 5720692 7150865 14301730 28603460