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188270132 = 22714331531
BaseRepresentation
bin10110011100011…
…00011000110100
3111010021010001212
423032030120310
5341144121012
630403140552
74444161341
oct1316143064
9433233055
10188270132
1197301156
1253074758
133000b25b
141b00b7c8
15117ddb22
hexb38c634

188270132 has 24 divisors (see below), whose sum is σ = 335103552. Its totient is φ = 92534400.

The previous prime is 188270129. The next prime is 188270143. The reversal of 188270132 is 231072881.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 122207 + ... + 123737.

It is an arithmetic number, because the mean of its divisors is an integer number (13962648).

Almost surely, 2188270132 is an apocalyptic number.

It is an amenable number.

188270132 is a deficient number, since it is larger than the sum of its proper divisors (146833420).

188270132 is a wasteful number, since it uses less digits than its factorization.

188270132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039 (or 2037 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 188270132 is about 13721.1563652631. The cubic root of 188270132 is about 573.1396784521.

The spelling of 188270132 in words is "one hundred eighty-eight million, two hundred seventy thousand, one hundred thirty-two".

Divisors: 1 2 4 71 142 284 433 866 1531 1732 3062 6124 30743 61486 108701 122972 217402 434804 662923 1325846 2651692 47067533 94135066 188270132