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38870898 = 2311588953
BaseRepresentation
bin1001010001000…
…1111101110010
32201010211211220
42110101331302
534422332043
63505045510
7651253143
oct224217562
981124756
1038870898
111aa3a310
1211026896
13808c941
14523baca
15362c483
hex2511f72

38870898 has 16 divisors (see below), whose sum is σ = 84809376. Its totient is φ = 11779040.

The previous prime is 38870893. The next prime is 38870917. The reversal of 38870898 is 89807883.

38870898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×388708982 = 3021893422652808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38870898.

It is not an unprimeable number, because it can be changed into a prime (38870893) by changing a digit.

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, 294411 + ... + 294542.

It is an arithmetic number, because the mean of its divisors is an integer number (5300586).

Almost surely, 238870898 is an apocalyptic number.

38870898 is an abundant number, since it is smaller than the sum of its proper divisors (45938478).

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

38870898 is a wasteful number, since it uses less digits than its factorization.

38870898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588969.

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 38870898 is about 6234.6529975613. The cubic root of 38870898 is about 338.7465321922.

The spelling of 38870898 in words is "thirty-eight million, eight hundred seventy thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 11 22 33 66 588953 1177906 1766859 3533718 6478483 12956966 19435449 38870898