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395092020 = 22356584867
BaseRepresentation
bin10111100011001…
…010000000110100
31000112102202100210
4113203022000310
51302120421040
6103112105420
712535140531
oct2743120064
91015382323
10395092020
11193023534
12b0395270
1363b1367b
143a687d88
1524a44480
hex178ca034

395092020 has 24 divisors (see below), whose sum is σ = 1106257824. Its totient is φ = 105357856.

The previous prime is 395092007. The next prime is 395092021. The reversal of 395092020 is 20290593.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395092021) 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, 3292374 + ... + 3292493.

It is an arithmetic number, because the mean of its divisors is an integer number (46094076).

Almost surely, 2395092020 is an apocalyptic number.

395092020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

395092020 is an abundant number, since it is smaller than the sum of its proper divisors (711165804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395092020 is a wasteful number, since it uses less digits than its factorization.

395092020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6584879 (or 6584877 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 395092020 is about 19876.9217938795. The cubic root of 395092020 is about 733.7803642629.

The spelling of 395092020 in words is "three hundred ninety-five million, ninety-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 6584867 13169734 19754601 26339468 32924335 39509202 65848670 79018404 98773005 131697340 197546010 395092020