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8990755 = 51798151
BaseRepresentation
bin100010010011…
…000000100011
3121220202222221
4202103000203
54300201010
6520411511
7136264054
oct42230043
917822887
108990755
115090984
123016b97
131b2a397
1412a072b
15bc8dda
hex893023

8990755 has 4 divisors (see below), whose sum is σ = 10788912. Its totient is φ = 7192600.

The previous prime is 8990747. The next prime is 8990777. The reversal of 8990755 is 5570998.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8990755 - 23 = 8990747 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 899071 + ... + 899080.

It is an arithmetic number, because the mean of its divisors is an integer number (2697228).

Almost surely, 28990755 is an apocalyptic number.

8990755 is a deficient number, since it is larger than the sum of its proper divisors (1798157).

8990755 is a wasteful number, since it uses less digits than its factorization.

8990755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798156.

The product of its (nonzero) digits is 113400, while the sum is 43.

The square root of 8990755 is about 2998.4587707687. The cubic root of 8990755 is about 207.9371342929.

The spelling of 8990755 in words is "eight million, nine hundred ninety thousand, seven hundred fifty-five".

Divisors: 1 5 1798151 8990755