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28454750 = 253113819
BaseRepresentation
bin110110010001…
…0111101011110
31222112122120122
41230202331132
524241023000
62453514542
7463601312
oct154427536
958478518
1028454750
1115075525
129642a52
135b8383c
143ac9b42
152771085
hex1b22f5e

28454750 has 16 divisors (see below), whose sum is σ = 53267760. Its totient is φ = 11381800.

The previous prime is 28454717. The next prime is 28454791. The reversal of 28454750 is 5745482.

It is a self number, because there is not a number n which added to its sum of digits gives 28454750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56660 + ... + 57159.

It is an arithmetic number, because the mean of its divisors is an integer number (3329235).

Almost surely, 228454750 is an apocalyptic number.

28454750 is a deficient number, since it is larger than the sum of its proper divisors (24813010).

28454750 is a wasteful number, since it uses less digits than its factorization.

28454750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113836 (or 113826 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 28454750 is about 5334.2993916727. The cubic root of 28454750 is about 305.2939922595.

The spelling of 28454750 in words is "twenty-eight million, four hundred fifty-four thousand, seven hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 113819 227638 569095 1138190 2845475 5690950 14227375 28454750