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38981130 = 2357118301
BaseRepresentation
bin1001010010110…
…0111000001010
32201100110001120
42110230320022
534434344010
63511300110
7652222416
oct224547012
981313046
1038981130
1120005111
121107a636
1380cab76
145269d46
15364ee70
hex252ce0a

38981130 has 32 divisors (see below), whose sum is σ = 94877568. Its totient is φ = 10248000.

The previous prime is 38981101. The next prime is 38981143. The reversal of 38981130 is 3118983.

It is a junction number, because it is equal to n+sod(n) for n = 38981091 and 38981100.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7021 + ... + 11280.

It is an arithmetic number, because the mean of its divisors is an integer number (2964924).

Almost surely, 238981130 is an apocalyptic number.

38981130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38981130 is an abundant number, since it is smaller than the sum of its proper divisors (55896438).

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

38981130 is a wasteful number, since it uses less digits than its factorization.

38981130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18382.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 38981130 is about 6243.4870064732. The cubic root of 38981130 is about 339.0664413241.

The spelling of 38981130 in words is "thirty-eight million, nine hundred eighty-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 71 142 213 355 426 710 1065 2130 18301 36602 54903 91505 109806 183010 274515 549030 1299371 2598742 3898113 6496855 7796226 12993710 19490565 38981130