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38839801 = 72111323241
BaseRepresentation
bin1001010000101…
…0010111111001
32201002021012011
42110022113321
534420333201
63504245521
7651063400
oct224122771
981067164
1038839801
111aa18a10
12110108a1
13807b740
145230637
153623151
hex250a5f9

38839801 has 48 divisors (see below), whose sum is σ = 55617408. Its totient is φ = 26611200.

The previous prime is 38839799. The next prime is 38839811. The reversal of 38839801 is 10893883.

38839801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38839801 - 21 = 38839799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38839811) 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 47 ways as a sum of consecutive naturals, for example, 161041 + ... + 161281.

It is an arithmetic number, because the mean of its divisors is an integer number (1158696).

Almost surely, 238839801 is an apocalyptic number.

It is an amenable number.

38839801 is a deficient number, since it is larger than the sum of its proper divisors (16777607).

38839801 is a wasteful number, since it uses less digits than its factorization.

38839801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 38839801 is about 6232.1586147979. The cubic root of 38839801 is about 338.6561748658.

The spelling of 38839801 in words is "thirty-eight million, eight hundred thirty-nine thousand, eight hundred one".

Divisors: 1 7 11 13 23 49 77 91 143 161 241 253 299 539 637 1001 1127 1687 1771 2093 2651 3133 3289 5543 7007 11809 12397 14651 18557 21931 23023 34463 38801 60973 72059 129899 153517 161161 241241 271607 426811 504413 792649 1688687 2987677 3530891 5548543 38839801