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1138057230 = 23537935241
BaseRepresentation
bin100001111010101…
…0110000000001110
32221022110022000210
41003311112000032
54312320312410
6304532303250
740126220052
oct10365260016
92838408023
101138057230
11534449272
12279171b26
13151a1715b
14ab207c62
1569da2220
hex43d5600e

1138057230 has 16 divisors (see below), whose sum is σ = 2731337424. Its totient is φ = 303481920.

The previous prime is 1138057223. The next prime is 1138057259. The reversal of 1138057230 is 327508311.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 37935241 = 1138057230 / (1 + 1 + 3 + 8 + 0 + 5 + 7 + 2 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

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, 18967591 + ... + 18967650.

It is an arithmetic number, because the mean of its divisors is an integer number (170708589).

Almost surely, 21138057230 is an apocalyptic number.

1138057230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1138057230 is an abundant number, since it is smaller than the sum of its proper divisors (1593280194).

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

1138057230 is a wasteful number, since it uses less digits than its factorization.

1138057230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37935251.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1138057230 is about 33735.1038237620. The cubic root of 1138057230 is about 1044.0501675075.

The spelling of 1138057230 in words is "one billion, one hundred thirty-eight million, fifty-seven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 37935241 75870482 113805723 189676205 227611446 379352410 569028615 1138057230