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189036120 = 233572132473
BaseRepresentation
bin10110100010001…
…11011001011000
3111011201000210210
423101013121120
5341343123440
630431411120
74453531500
oct1321073130
9434630723
10189036120
11977846a9
1253383aa0
1330218ac0
141b16aa00
15118e0a80
hexb447658

189036120 has 192 divisors, whose sum is σ = 710730720. Its totient is φ = 39868416.

The previous prime is 189036101. The next prime is 189036121. The reversal of 189036120 is 21630981.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189036121) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 75204 + ... + 77676.

Almost surely, 2189036120 is an apocalyptic number.

189036120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189036120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355365360).

189036120 is an abundant number, since it is smaller than the sum of its proper divisors (521694600).

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

189036120 is a wasteful number, since it uses less digits than its factorization.

189036120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514 (or 2503 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 189036120 is about 13749.0406938084. The cubic root of 189036120 is about 573.9159107435.

The spelling of 189036120 in words is "one hundred eighty-nine million, thirty-six thousand, one hundred twenty".