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38888380 = 22512011619
BaseRepresentation
bin1001010001011…
…0001110111100
32201011201211101
42110112032330
534423412010
63505302444
7651355126
oct224261674
981151741
1038888380
111aa51463
1211034a24
13809789b
145244216
15363273a
hex25163bc

38888380 has 24 divisors (see below), whose sum is σ = 81784080. Its totient is φ = 15532800.

The previous prime is 38888359. The next prime is 38888413. The reversal of 38888380 is 8388883.

It is a happy number.

38888380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 38888380.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23211 + ... + 24829.

It is an arithmetic number, because the mean of its divisors is an integer number (3407670).

Almost surely, 238888380 is an apocalyptic number.

It is an amenable number.

38888380 is an abundant number, since it is smaller than the sum of its proper divisors (42895700).

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

38888380 is a wasteful number, since it uses less digits than its factorization.

38888380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829 (or 2827 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 38888380 is about 6236.0548426068. The cubic root of 38888380 is about 338.7973077905.

The spelling of 38888380 in words is "thirty-eight million, eight hundred eighty-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 1201 1619 2402 3238 4804 6005 6476 8095 12010 16190 24020 32380 1944419 3888838 7777676 9722095 19444190 38888380