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38889108 = 22323892777
BaseRepresentation
bin1001010001011…
…0011010010100
32201011202211100
42110112122110
534423422413
63505310100
7651360216
oct224263224
981152740
1038889108
111aa51a65
1211035330
13809800b
1452445b6
153632a73
hex2516694

38889108 has 36 divisors (see below), whose sum is σ = 98591220. Its totient is φ = 12925056.

The previous prime is 38889101. The next prime is 38889131. The reversal of 38889108 is 80198883.

It can be written as a sum of positive squares in 2 ways, for example, as 7551504 + 31337604 = 2748^2 + 5598^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38889101) 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 11 ways as a sum of consecutive naturals, for example, 12616 + ... + 15392.

It is an arithmetic number, because the mean of its divisors is an integer number (2738645).

Almost surely, 238889108 is an apocalyptic number.

It is an amenable number.

38889108 is an abundant number, since it is smaller than the sum of its proper divisors (59702112).

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

38889108 is a wasteful number, since it uses less digits than its factorization.

38889108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176 (or 3171 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 38889108 is about 6236.1132125708. The cubic root of 38889108 is about 338.7994219001.

It can be divided in two parts, 3888 and 9108, that added together give a square (12996 = 1142).

The spelling of 38889108 in words is "thirty-eight million, eight hundred eighty-nine thousand, one hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 389 778 1167 1556 2334 2777 3501 4668 5554 7002 8331 11108 14004 16662 24993 33324 49986 99972 1080253 2160506 3240759 4321012 6481518 9722277 12963036 19444554 38889108