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104508431 = 297274957
BaseRepresentation
bin1100011101010…
…10110000001111
321021122120121122
412032222300033
5203223232211
614211551155
72406210206
oct616526017
9237576548
10104508431
1153aa0805
122abbb4bb
1318861911
14dc4623d
1592956db
hex63aac0f

104508431 has 8 divisors (see below), whose sum is σ = 108282720. Its totient is φ = 100745568.

The previous prime is 104508413. The next prime is 104508457. The reversal of 104508431 is 134805401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104508431 - 218 = 104246287 is a prime.

It is a super-4 number, since 4×1045084314 (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104508431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104508731) 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, 18605 + ... + 23561.

It is an arithmetic number, because the mean of its divisors is an integer number (13535340).

Almost surely, 2104508431 is an apocalyptic number.

104508431 is a deficient number, since it is larger than the sum of its proper divisors (3774289).

104508431 is an equidigital number, since it uses as much as digits as its factorization.

104508431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 104508431 is about 10222.9365155028. The cubic root of 104508431 is about 471.0320327774.

It can be divided in two parts, 10450 and 8431, that added together give a palindrome (18881).

The spelling of 104508431 in words is "one hundred four million, five hundred eight thousand, four hundred thirty-one".

Divisors: 1 29 727 4957 21083 143753 3603739 104508431