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395052490 = 2575643607
BaseRepresentation
bin10111100011000…
…000010111001010
31000112100202010201
4113203000113022
51302113134430
6103111202414
712534614350
oct2743002712
91015322121
10395052490
11192aa6868
12b037640a
1363acb691
143a6777d0
1524a378ca
hex178c05ca

395052490 has 16 divisors (see below), whose sum is σ = 812679552. Its totient is φ = 135446544.

The previous prime is 395052487. The next prime is 395052517. The reversal of 395052490 is 94250593.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2821734 + ... + 2821873.

It is an arithmetic number, because the mean of its divisors is an integer number (50792472).

Almost surely, 2395052490 is an apocalyptic number.

395052490 is an abundant number, since it is smaller than the sum of its proper divisors (417627062).

395052490 is a wasteful number, since it uses less digits than its factorization.

395052490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5643621.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 395052490 is about 19875.9273997467. The cubic root of 395052490 is about 733.7558912256.

The spelling of 395052490 in words is "three hundred ninety-five million, fifty-two thousand, four hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 5643607 11287214 28218035 39505249 56436070 79010498 197526245 395052490