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38849072 = 2419472719
BaseRepresentation
bin1001010000110…
…0101000110000
32201002201220112
42110030220300
534421132242
63504400452
7651132413
oct224145060
981081815
1038849072
111aa24979
1211016128
138082a22
145233b7a
153625c82
hex250ca30

38849072 has 40 divisors (see below), whose sum is σ = 80947200. Its totient is φ = 18004032.

The previous prime is 38849051. The next prime is 38849077. The reversal of 38849072 is 27094883.

It is a super-2 number, since 2×388490722 = 3018500790522368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38849077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12929 + ... + 15647.

It is an arithmetic number, because the mean of its divisors is an integer number (2023680).

Almost surely, 238849072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38849072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40473600).

38849072 is an abundant number, since it is smaller than the sum of its proper divisors (42098128).

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

38849072 is a wasteful number, since it uses less digits than its factorization.

38849072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793 (or 2787 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 38849072 is about 6232.9023736940. The cubic root of 38849072 is about 338.6831182893.

The spelling of 38849072 in words is "thirty-eight million, eight hundred forty-nine thousand, seventy-two".

Divisors: 1 2 4 8 16 19 38 47 76 94 152 188 304 376 752 893 1786 2719 3572 5438 7144 10876 14288 21752 43504 51661 103322 127793 206644 255586 413288 511172 826576 1022344 2044688 2428067 4856134 9712268 19424536 38849072