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28854070 = 257412201
BaseRepresentation
bin110111000010…
…0011100110110
32000021221100021
41232010130312
524341312240
62510235354
7500153440
oct156043466
960257307
1028854070
1115318543
1297b5b5a
135c9351b
143b91490
1527ee54a
hex1b84736

28854070 has 16 divisors (see below), whose sum is σ = 59357088. Its totient is φ = 9892800.

The previous prime is 28854047. The next prime is 28854073. The reversal of 28854070 is 7045882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28854073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206031 + ... + 206170.

It is an arithmetic number, because the mean of its divisors is an integer number (3709818).

Almost surely, 228854070 is an apocalyptic number.

28854070 is an abundant number, since it is smaller than the sum of its proper divisors (30503018).

28854070 is a wasteful number, since it uses less digits than its factorization.

28854070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412215.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 28854070 is about 5371.5984585596. The cubic root of 28854070 is about 306.7154787351.

The spelling of 28854070 in words is "twenty-eight million, eight hundred fifty-four thousand, seventy".

Divisors: 1 2 5 7 10 14 35 70 412201 824402 2061005 2885407 4122010 5770814 14427035 28854070