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131123324 = 2232780831
BaseRepresentation
bin1111101000011…
…00100001111100
3100010201202101102
413310030201330
5232031421244
621002232232
73151346513
oct764144174
9303652342
10131123324
1168019992
1237ab5678
132121cb87
14135b367a
15b7a154e
hex7d0c87c

131123324 has 6 divisors (see below), whose sum is σ = 229465824. Its totient is φ = 65561660.

The previous prime is 131123323. The next prime is 131123327. The reversal of 131123324 is 423321131.

It is a super-3 number, since 3×1311233243 (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131123296 and 131123305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131123323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16390412 + ... + 16390419.

It is an arithmetic number, because the mean of its divisors is an integer number (38244304).

Almost surely, 2131123324 is an apocalyptic number.

It is an amenable number.

131123324 is a deficient number, since it is larger than the sum of its proper divisors (98342500).

131123324 is a wasteful number, since it uses less digits than its factorization.

131123324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32780835 (or 32780833 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 131123324 is about 11450.9093088715. The cubic root of 131123324 is about 508.0346298752.

Adding to 131123324 its reverse (423321131), we get a palindrome (554444455).

The spelling of 131123324 in words is "one hundred thirty-one million, one hundred twenty-three thousand, three hundred twenty-four".

Divisors: 1 2 4 32780831 65561662 131123324