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39485381 = 1319915263
BaseRepresentation
bin1001011010011…
…1111111000101
32202022001202112
42112213333011
540102013011
63530150405
7656422505
oct226477705
982261675
1039485381
1120319a51
1211282405
138246540
14535ba05
1536ee58b
hex25a7fc5

39485381 has 8 divisors (see below), whose sum is σ = 42739200. Its totient is φ = 36262512.

The previous prime is 39485377. The next prime is 39485387. The reversal of 39485381 is 18358493.

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

It is not a de Polignac number, because 39485381 - 22 = 39485377 is a prime.

It is a super-2 number, since 2×394853812 = 3118190625430322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39485387) 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, 5045 + ... + 10218.

It is an arithmetic number, because the mean of its divisors is an integer number (5342400).

Almost surely, 239485381 is an apocalyptic number.

It is an amenable number.

39485381 is a deficient number, since it is larger than the sum of its proper divisors (3253819).

39485381 is a wasteful number, since it uses less digits than its factorization.

39485381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15475.

The product of its digits is 103680, while the sum is 41.

The square root of 39485381 is about 6283.7394121653. The cubic root of 39485381 is about 340.5222107826.

The spelling of 39485381 in words is "thirty-nine million, four hundred eighty-five thousand, three hundred eighty-one".

Divisors: 1 13 199 2587 15263 198419 3037337 39485381