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255131132 = 22377921821
BaseRepresentation
bin11110011010011…
…11110111111100
3122210002000010012
433031033313330
51010303144012
641152202352
76215402354
oct1715176774
9583060105
10255131132
11121018883
12715393b8
1340b1b089
1425c53b64
15175e9622
hexf34fdfc

255131132 has 24 divisors (see below), whose sum is σ = 464372160. Its totient is φ = 122541120.

The previous prime is 255131119. The next prime is 255131137. The reversal of 255131132 is 231131552.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 255131098 and 255131107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255131137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782 + ... + 22602.

It is an arithmetic number, because the mean of its divisors is an integer number (19348840).

Almost surely, 2255131132 is an apocalyptic number.

It is an amenable number.

255131132 is a deficient number, since it is larger than the sum of its proper divisors (209241028).

255131132 is a wasteful number, since it uses less digits than its factorization.

255131132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21941 (or 21939 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 255131132 is about 15972.8247971359. The cubic root of 255131132 is about 634.2412513520.

Adding to 255131132 its reverse (231131552), we get a palindrome (486262684).

The spelling of 255131132 in words is "two hundred fifty-five million, one hundred thirty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 37 74 79 148 158 316 2923 5846 11692 21821 43642 87284 807377 1614754 1723859 3229508 3447718 6895436 63782783 127565566 255131132