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39493541 = 375411973
BaseRepresentation
bin1001011010100…
…1111110100101
32202022110221202
42112221332211
540102243131
63530252245
7656455343
oct226517645
982273852
1039493541
112032509a
1211287085
13824a179
145360993
153701bcb
hex25a9fa5

39493541 has 8 divisors (see below), whose sum is σ = 40656504. Its totient is φ = 38335680.

The previous prime is 39493463. The next prime is 39493577. The reversal of 39493541 is 14539493.

It can be written as a sum of positive squares in 4 ways, for example, as 6477025 + 33016516 = 2545^2 + 5746^2 .

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 39493541 - 210 = 39492517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39493495 and 39493504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39495541) 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, 19031 + ... + 21003.

It is an arithmetic number, because the mean of its divisors is an integer number (5082063).

Almost surely, 239493541 is an apocalyptic number.

It is an amenable number.

39493541 is a deficient number, since it is larger than the sum of its proper divisors (1162963).

39493541 is a wasteful number, since it uses less digits than its factorization.

39493541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551.

The product of its digits is 58320, while the sum is 38.

The square root of 39493541 is about 6284.3886735306. The cubic root of 39493541 is about 340.5456664665.

The spelling of 39493541 in words is "thirty-nine million, four hundred ninety-three thousand, five hundred forty-one".

Divisors: 1 37 541 1973 20017 73001 1067393 39493541