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132189897 = 3721924753
BaseRepresentation
bin1111110000100…
…00111011001001
3100012201221110010
413320100323021
5232320034042
621041142133
73163411200
oct770207311
9305657403
10132189897
1168688254
123832a949
1321504498
14137b0237
15b91259c
hex7e10ec9

132189897 has 72 divisors (see below), whose sum is σ = 225161856. Its totient is φ = 68717376.

The previous prime is 132189887. The next prime is 132189899. The reversal of 132189897 is 798981231.

It is not a de Polignac number, because 132189897 - 219 = 131665609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132189899) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2494123 + ... + 2494175.

It is an arithmetic number, because the mean of its divisors is an integer number (3127248).

Almost surely, 2132189897 is an apocalyptic number.

It is an amenable number.

132189897 is a deficient number, since it is larger than the sum of its proper divisors (92971959).

132189897 is a wasteful number, since it uses less digits than its factorization.

132189897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 129 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The square root of 132189897 is about 11497.3865291204. The cubic root of 132189897 is about 509.4083835599.

The spelling of 132189897 in words is "one hundred thirty-two million, one hundred eighty-nine thousand, eight hundred ninety-seven".

Divisors: 1 3 7 19 21 47 49 53 57 133 141 147 159 329 361 371 399 893 931 987 1007 1083 1113 2303 2491 2527 2597 2679 2793 3021 6251 6909 7049 7473 7581 7791 16967 17437 17689 18753 19133 21147 43757 47329 49343 50901 52311 53067 57399 118769 122059 131271 133931 141987 148029 331303 356307 366177 401793 831383 899251 937517 993909 2319121 2494149 2697753 2812551 6294757 6957363 18884271 44063299 132189897