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189051080 = 2354726277
BaseRepresentation
bin10110100010010…
…11000011001000
3111011201210022212
423101023003020
5341344113310
630432004252
74453623221
oct1321130310
9434653285
10189051080
1197794969
1253390688
133022285a
141b172248
15118e5205
hexb44b0c8

189051080 has 16 divisors (see below), whose sum is σ = 425365020. Its totient is φ = 75620416.

The previous prime is 189051077. The next prime is 189051089. The reversal of 189051080 is 80150981.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 170198116 + 18852964 = 13046^2 + 4342^2 .

It is not an unprimeable number, because it can be changed into a prime (189051089) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2363099 + ... + 2363178.

Almost surely, 2189051080 is an apocalyptic number.

189051080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189051080 is an abundant number, since it is smaller than the sum of its proper divisors (236313940).

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

189051080 is a wasteful number, since it uses less digits than its factorization.

189051080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4726288 (or 4726284 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 189051080 is about 13749.5847210016. The cubic root of 189051080 is about 573.9310499235.

The spelling of 189051080 in words is "one hundred eighty-nine million, fifty-one thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 4726277 9452554 18905108 23631385 37810216 47262770 94525540 189051080