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397132412 = 22569174487
BaseRepresentation
bin10111101010111…
…100001001111100
31000200021102020212
4113222330021330
51303131214122
6103223531552
712561366305
oct2752741174
91020242225
10397132412
11194197506
12b0bb9bb8
13643792c1
143aa597ac
1524ce8ce2
hex17abc27c

397132412 has 12 divisors (see below), whose sum is σ = 696207120. Its totient is φ = 198216096.

The previous prime is 397132369. The next prime is 397132441. The reversal of 397132412 is 214231793.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84968 + ... + 89519.

It is an arithmetic number, because the mean of its divisors is an integer number (58017260).

Almost surely, 2397132412 is an apocalyptic number.

It is an amenable number.

397132412 is a deficient number, since it is larger than the sum of its proper divisors (299074708).

397132412 is a wasteful number, since it uses less digits than its factorization.

397132412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175060 (or 175058 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 397132412 is about 19928.1813520451. The cubic root of 397132412 is about 735.0413613017.

The spelling of 397132412 in words is "three hundred ninety-seven million, one hundred thirty-two thousand, four hundred twelve".

Divisors: 1 2 4 569 1138 2276 174487 348974 697948 99283103 198566206 397132412