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8993740 = 2257227283
BaseRepresentation
bin100010010011…
…101111001100
3121220221002111
4202103233030
54300244430
6520433404
7136305550
oct42235714
917827074
108993740
115093148
123018864
131b2b852
1412a1860
15bc9c2a
hex893bcc

8993740 has 48 divisors (see below), whose sum is σ = 21756672. Its totient is φ = 3059136.

The previous prime is 8993737. The next prime is 8993749. The reversal of 8993740 is 473998.

8993740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8993693 and 8993702.

It is not an unprimeable number, because it can be changed into a prime (8993749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31639 + ... + 31921.

It is an arithmetic number, because the mean of its divisors is an integer number (453264).

Almost surely, 28993740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8993740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10878336).

8993740 is an abundant number, since it is smaller than the sum of its proper divisors (12762932).

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

8993740 is a wasteful number, since it uses less digits than its factorization.

8993740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 8993740 is about 2998.9564851795. The cubic root of 8993740 is about 207.9601439907.

The spelling of 8993740 in words is "eight million, nine hundred ninety-three thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 227 283 454 566 908 1132 1135 1415 1589 1981 2270 2830 3178 3962 4540 5660 6356 7924 7945 9905 15890 19810 31780 39620 64241 128482 256964 321205 449687 642410 899374 1284820 1798748 2248435 4496870 8993740