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238118130 = 23552931109
BaseRepresentation
bin11100011000101…
…10010011110010
3121121001122200000
432030112103302
5441424240010
635343410430
75620653645
oct1614262362
9547048600
10238118130
11112458748
12678b3a16
133a442403
14238a5a5c
1515d887c0
hexe3164f2

238118130 has 192 divisors, whose sum is σ = 691891200. Its totient is φ = 58786560.

The previous prime is 238118129. The next prime is 238118131. The reversal of 238118130 is 31811832.

238118130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (238118129) and next prime (238118131).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 238118094 and 238118103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238118131) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2184516 + ... + 2184624.

It is an arithmetic number, because the mean of its divisors is an integer number (3603600).

Almost surely, 2238118130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238118130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345945600).

238118130 is an abundant number, since it is smaller than the sum of its proper divisors (453773070).

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

238118130 is a wasteful number, since it uses less digits than its factorization.

238118130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 238118130 is about 15431.0767608745. The cubic root of 238118130 is about 619.8179573070.

Adding to 238118130 its reverse (31811832), we get a palindrome (269929962).

The spelling of 238118130 in words is "two hundred thirty-eight million, one hundred eighteen thousand, one hundred thirty".