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38281122 = 23211397487
BaseRepresentation
bin1001001000000…
…1111110100010
32200000212211100
42102001332202
534244443442
63444255230
7643245525
oct222017642
980025740
1038281122
111a6771a0
12109a1516
137c14369
145126bbc
15356284c
hex2481fa2

38281122 has 48 divisors (see below), whose sum is σ = 90896832. Its totient is φ = 11547360.

The previous prime is 38281081. The next prime is 38281129. The reversal of 38281122 is 22118283.

It is not an unprimeable number, because it can be changed into a prime (38281129) 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 23 ways as a sum of consecutive naturals, for example, 78363 + ... + 78849.

It is an arithmetic number, because the mean of its divisors is an integer number (1893684).

Almost surely, 238281122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38281122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45448416).

38281122 is an abundant number, since it is smaller than the sum of its proper divisors (52615710).

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

38281122 is a wasteful number, since it uses less digits than its factorization.

38281122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903 (or 900 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 38281122 is about 6187.1739914116. The cubic root of 38281122 is about 337.0245618378.

It can be divided in two parts, 3828 and 1122, that added together give a triangular number (4950 = T99).

The spelling of 38281122 in words is "thirty-eight million, two hundred eighty-one thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 397 487 794 974 1191 1461 2382 2922 3573 4367 4383 5357 7146 8734 8766 10714 13101 16071 26202 32142 39303 48213 78606 96426 193339 386678 580017 1160034 1740051 2126729 3480102 4253458 6380187 12760374 19140561 38281122