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38935949 = 1312292437
BaseRepresentation
bin1001010010000…
…1110110001101
32201021011002012
42110201312031
534431422244
63510311005
7651643613
oct224416615
981234065
1038935949
111aa84178
1211058465
1380b3430
1452576b3
15364189e
hex2521d8d

38935949 has 8 divisors (see below), whose sum is σ = 41982360. Its totient is φ = 35896896.

The previous prime is 38935927. The next prime is 38935979. The reversal of 38935949 is 94953983.

It can be written as a sum of positive squares in 4 ways, for example, as 20187049 + 18748900 = 4493^2 + 4330^2 .

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 38935949 - 216 = 38870413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38935897 and 38935906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38935979) 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, 14759 + ... + 17195.

It is an arithmetic number, because the mean of its divisors is an integer number (5247795).

Almost surely, 238935949 is an apocalyptic number.

It is an amenable number.

38935949 is a deficient number, since it is larger than the sum of its proper divisors (3046411).

38935949 is a wasteful number, since it uses less digits than its factorization.

38935949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679.

The product of its digits is 1049760, while the sum is 50.

The square root of 38935949 is about 6239.8677069310. The cubic root of 38935949 is about 338.9353925891.

The spelling of 38935949 in words is "thirty-eight million, nine hundred thirty-five thousand, nine hundred forty-nine".

Divisors: 1 13 1229 2437 15977 31681 2995073 38935949