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117275437 = 641182957
BaseRepresentation
bin1101111110101…
…11101100101101
322011200012122201
412333113230231
5220010303222
615345341501
72622552616
oct677275455
9264605581
10117275437
1160220854
1233337891
131b3b1a66
141180ac0d
15a468427
hex6fd7b2d

117275437 has 4 divisors (see below), whose sum is σ = 117459036. Its totient is φ = 117091840.

The previous prime is 117275419. The next prime is 117275441. The reversal of 117275437 is 734572711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 734572711 = 1444950839.

It can be written as a sum of positive squares in 2 ways, for example, as 102637161 + 14638276 = 10131^2 + 3826^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-117275437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117275396 and 117275405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117275407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90838 + ... + 92119.

It is an arithmetic number, because the mean of its divisors is an integer number (29364759).

Almost surely, 2117275437 is an apocalyptic number.

It is an amenable number.

117275437 is a deficient number, since it is larger than the sum of its proper divisors (183599).

117275437 is an equidigital number, since it uses as much as digits as its factorization.

117275437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183598.

The product of its digits is 41160, while the sum is 37.

The square root of 117275437 is about 10829.3784216824. The cubic root of 117275437 is about 489.4808287073.

The spelling of 117275437 in words is "one hundred seventeen million, two hundred seventy-five thousand, four hundred thirty-seven".

Divisors: 1 641 182957 117275437