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8444740 = 2251971313
BaseRepresentation
bin100000001101…
…101101000100
3120220001000011
4200031231010
54130212430
6501000004
7131531143
oct40155504
916801004
108444740
114848727
1229b3004
1319989b5
14119b75a
15b1c22a
hex80db44

8444740 has 48 divisors (see below), whose sum is σ = 18990720. Its totient is φ = 3144960.

The previous prime is 8444731. The next prime is 8444773. The reversal of 8444740 is 474448.

8444740 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26824 + ... + 27136.

It is an arithmetic number, because the mean of its divisors is an integer number (395640).

Almost surely, 28444740 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 8444740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9495360).

8444740 is an abundant number, since it is smaller than the sum of its proper divisors (10545980).

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

8444740 is a wasteful number, since it uses less digits than its factorization.

8444740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 8444740 is about 2905.9834824032. The cubic root of 8444740 is about 203.6395338821.

The spelling of 8444740 in words is "eight million, four hundred forty-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 19 20 38 71 76 95 142 190 284 313 355 380 626 710 1252 1349 1420 1565 2698 3130 5396 5947 6260 6745 11894 13490 22223 23788 26980 29735 44446 59470 88892 111115 118940 222230 422237 444460 844474 1688948 2111185 4222370 8444740