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38011530 = 2351267051
BaseRepresentation
bin1001000100000…
…0001010001010
32122112012000110
42101000022022
534212332110
63434415150
7641043534
oct221001212
978465013
1038011530
111a502697
12108914b6
137b4b73b
145096854
15350ca20
hex244028a

38011530 has 16 divisors (see below), whose sum is σ = 91227744. Its totient is φ = 10136400.

The previous prime is 38011529. The next prime is 38011553. The reversal of 38011530 is 3511083.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 38011497 and 38011506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633496 + ... + 633555.

It is an arithmetic number, because the mean of its divisors is an integer number (5701734).

Almost surely, 238011530 is an apocalyptic number.

38011530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38011530 is an abundant number, since it is smaller than the sum of its proper divisors (53216214).

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

38011530 is a wasteful number, since it uses less digits than its factorization.

38011530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267061.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 38011530 is about 6165.3491385322. The cubic root of 38011530 is about 336.2315403786.

The spelling of 38011530 in words is "thirty-eight million, eleven thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1267051 2534102 3801153 6335255 7602306 12670510 19005765 38011530