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8972420 = 2251512971
BaseRepresentation
bin100010001110…
…100010000100
3121212211211212
4202032202010
54244104140
6520150552
7136156442
oct42164204
917784755
108972420
115079126
123008458
131b21c32
141297b92
15bc3765
hex88e884

8972420 has 24 divisors (see below), whose sum is σ = 18973248. Its totient is φ = 3564000.

The previous prime is 8972407. The next prime is 8972459. The reversal of 8972420 is 242798.

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, 1535 + ... + 4505.

It is an arithmetic number, because the mean of its divisors is an integer number (790552).

Almost surely, 28972420 is an apocalyptic number.

It is an amenable number.

8972420 is an abundant number, since it is smaller than the sum of its proper divisors (10000828).

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

8972420 is a wasteful number, since it uses less digits than its factorization.

8972420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131 (or 3129 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 8972420 is about 2995.3998063698. The cubic root of 8972420 is about 207.7956881834.

The spelling of 8972420 in words is "eight million, nine hundred seventy-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 151 302 604 755 1510 2971 3020 5942 11884 14855 29710 59420 448621 897242 1794484 2243105 4486210 8972420