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8990970 = 235299699
BaseRepresentation
bin100010010011…
…000011111010
3121220210021220
4202103003322
54300202340
6520412510
7136264512
oct42230372
917823256
108990970
11509105a
123017136
131b2a501
1412a0842
15bc8ed0
hex8930fa

8990970 has 16 divisors (see below), whose sum is σ = 21578400. Its totient is φ = 2397584.

The previous prime is 8990939. The next prime is 8990981. The reversal of 8990970 is 790998.

It is a happy number.

It is an Ulam 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, 149820 + ... + 149879.

It is an arithmetic number, because the mean of its divisors is an integer number (1348650).

Almost surely, 28990970 is an apocalyptic number.

8990970 is an abundant number, since it is smaller than the sum of its proper divisors (12587430).

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

8990970 is a wasteful number, since it uses less digits than its factorization.

8990970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299709.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 8990970 is about 2998.4946223063. The cubic root of 8990970 is about 207.9387917780.

The spelling of 8990970 in words is "eight million, nine hundred ninety thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 299699 599398 899097 1498495 1798194 2996990 4495485 8990970