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188770132 = 2291151803
BaseRepresentation
bin10110100000001…
…10011101010100
3111011012111221101
423100012131110
5341311121012
630421555444
74451343145
oct1320063524
9434174841
10188770132
1197612881
1253275b84
1330154a05
141b0dbacc
151188bd57
hexb406754

188770132 has 12 divisors (see below), whose sum is σ = 330716736. Its totient is φ = 94279640.

The previous prime is 188770121. The next prime is 188770139. The reversal of 188770132 is 231077881.

It is a junction number, because it is equal to n+sod(n) for n = 188770091 and 188770100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188770139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22258 + ... + 29545.

It is an arithmetic number, because the mean of its divisors is an integer number (27559728).

Almost surely, 2188770132 is an apocalyptic number.

It is an amenable number.

188770132 is a deficient number, since it is larger than the sum of its proper divisors (141946604).

188770132 is a wasteful number, since it uses less digits than its factorization.

188770132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52718 (or 52716 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 188770132 is about 13739.3643229954. The cubic root of 188770132 is about 573.6466034806.

The spelling of 188770132 in words is "one hundred eighty-eight million, seven hundred seventy thousand, one hundred thirty-two".

Divisors: 1 2 4 911 1822 3644 51803 103606 207212 47192533 94385066 188770132