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132405208 = 23131273127
BaseRepresentation
bin1111110010001…
…01011111011000
3100020010212210121
413321011133120
5232343431313
621045523024
73165266005
oct771053730
9306125717
10132405208
1168814aa1
1238413474
132157b4a0
14138288ac
15b95628d
hex7e457d8

132405208 has 16 divisors (see below), whose sum is σ = 267356880. Its totient is φ = 61110048.

The previous prime is 132405149. The next prime is 132405269. The reversal of 132405208 is 802504231.

It is a super-2 number, since 2×1324052082 = 35062278211046528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636460 + ... + 636667.

It is an arithmetic number, because the mean of its divisors is an integer number (16709805).

Almost surely, 2132405208 is an apocalyptic number.

It is an amenable number.

132405208 is an abundant number, since it is smaller than the sum of its proper divisors (134951672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

132405208 is a wasteful number, since it uses less digits than its factorization.

132405208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273146 (or 1273142 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 132405208 is about 11506.7461951674. The cubic root of 132405208 is about 509.6848084485.

Adding to 132405208 its reverse (802504231), we get a palindrome (934909439).

The spelling of 132405208 in words is "one hundred thirty-two million, four hundred five thousand, two hundred eight".

Divisors: 1 2 4 8 13 26 52 104 1273127 2546254 5092508 10185016 16550651 33101302 66202604 132405208