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132974217 = 351983347
BaseRepresentation
bin1111110110100…
…00011010001001
3100021012210100000
413323100122021
5233020133332
621110033213
73203155635
oct773203211
9307183300
10132974217
1169073552
1238648809
132171a48c
1413935dc5
15ba19b7c
hex7ed0689

132974217 has 48 divisors (see below), whose sum is σ = 212808960. Its totient is φ = 82732752.

The previous prime is 132974213. The next prime is 132974227. The reversal of 132974217 is 712479231.

It is not a de Polignac number, because 132974217 - 22 = 132974213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (132974213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 383038 + ... + 383384.

It is an arithmetic number, because the mean of its divisors is an integer number (4433520).

Almost surely, 2132974217 is an apocalyptic number.

It is an amenable number.

132974217 is a deficient number, since it is larger than the sum of its proper divisors (79834743).

132974217 is an equidigital number, since it uses as much as digits as its factorization.

132974217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 452 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 132974217 is about 11531.4447056733. Note that the first 3 decimals coincide. The cubic root of 132974217 is about 510.4138854777.

The spelling of 132974217 in words is "one hundred thirty-two million, nine hundred seventy-four thousand, two hundred seventeen".

Divisors: 1 3 9 19 27 57 81 83 171 243 249 347 513 747 1041 1539 1577 2241 3123 4617 4731 6593 6723 9369 14193 19779 20169 28107 28801 42579 59337 84321 86403 127737 178011 259209 383211 534033 547219 777627 1602099 1641657 2332881 4924971 6998643 14774913 44324739 132974217