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8972120 = 235224303
BaseRepresentation
bin100010001110…
…011101011000
3121212211102202
4202032131120
54244101440
6520145332
7136155533
oct42163530
917784382
108972120
115078983
123008248
131b21a61
141297a1a
15bc3615
hex88e758

8972120 has 16 divisors (see below), whose sum is σ = 20187360. Its totient is φ = 3588832.

The previous prime is 8972101. The next prime is 8972129. The reversal of 8972120 is 212798.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8972129) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 112112 + ... + 112191.

It is an arithmetic number, because the mean of its divisors is an integer number (1261710).

Almost surely, 28972120 is an apocalyptic number.

It is an amenable number.

8972120 is an abundant number, since it is smaller than the sum of its proper divisors (11215240).

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

8972120 is a wasteful number, since it uses less digits than its factorization.

8972120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224314 (or 224310 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 8972120 is about 2995.3497291635. The cubic root of 8972120 is about 207.7933722195.

The spelling of 8972120 in words is "eight million, nine hundred seventy-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 224303 448606 897212 1121515 1794424 2243030 4486060 8972120