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1038018444 = 22386501537
BaseRepresentation
bin111101110111101…
…110011110001100
32200100012210121120
4331313232132030
54111213042234
6251000200540
734503003561
oct7567563614
92610183546
101038018444
11492a30691
1224b769150
1313708bac8
149bc06868
15611e1049
hex3ddee78c

1038018444 has 12 divisors (see below), whose sum is σ = 2422043064. Its totient is φ = 346006144.

The previous prime is 1038018407. The next prime is 1038018467. The reversal of 1038018444 is 4448108301.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×10380184442 = 2154964580168362272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43250757 + ... + 43250780.

It is an arithmetic number, because the mean of its divisors is an integer number (201836922).

Almost surely, 21038018444 is an apocalyptic number.

It is an amenable number.

1038018444 is an abundant number, since it is smaller than the sum of its proper divisors (1384024620).

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

1038018444 is a wasteful number, since it uses less digits than its factorization.

1038018444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86501544 (or 86501542 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 1038018444 is about 32218.2936233439. The cubic root of 1038018444 is about 1012.5155228835.

The spelling of 1038018444 in words is "one billion, thirty-eight million, eighteen thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 86501537 173003074 259504611 346006148 519009222 1038018444