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8970620 = 225448531
BaseRepresentation
bin100010001110…
…000101111100
3121212202101012
4202032011330
54244024440
6520134352
7136151261
oct42160574
917782335
108970620
11507783a
1230073b8
131b21179
141297268
15bc2e65
hex88e17c

8970620 has 12 divisors (see below), whose sum is σ = 18838344. Its totient is φ = 3588240.

The previous prime is 8970607. The next prime is 8970629. The reversal of 8970620 is 260798.

It is a super-4 number, since 4×89706204 (a number of 29 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8970629) 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, 224246 + ... + 224285.

It is an arithmetic number, because the mean of its divisors is an integer number (1569862).

Almost surely, 28970620 is an apocalyptic number.

It is an amenable number.

8970620 is an abundant number, since it is smaller than the sum of its proper divisors (9867724).

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

8970620 is a wasteful number, since it uses less digits than its factorization.

8970620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448540 (or 448538 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 8970620 is about 2995.0993305732. The cubic root of 8970620 is about 207.7817916258.

The spelling of 8970620 in words is "eight million, nine hundred seventy thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 448531 897062 1794124 2242655 4485310 8970620