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395063808 = 2931913537
BaseRepresentation
bin10111100011000…
…011001000000000
31000112101022122220
4113203003020000
51302114020213
6103111331040
712534662346
oct2743031000
91015338586
10395063808
11193004317
12b0380a80
1363b03889
143a67b996
1524a3ae23
hex178c3200

395063808 has 80 divisors (see below), whose sum is σ = 1107949920. Its totient is φ = 124747776.

The previous prime is 395063803. The next prime is 395063819. The reversal of 395063808 is 808360593.

It is a self number, because there is not a number n which added to its sum of digits gives 395063808.

It is not an unprimeable number, because it can be changed into a prime (395063803) 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, 22416 + ... + 35952.

It is an arithmetic number, because the mean of its divisors is an integer number (13849374).

Almost surely, 2395063808 is an apocalyptic number.

395063808 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395063808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553974960).

395063808 is an abundant number, since it is smaller than the sum of its proper divisors (712886112).

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

395063808 is a wasteful number, since it uses less digits than its factorization.

395063808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13577 (or 13561 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 395063808 is about 19876.2121139819. The cubic root of 395063808 is about 733.7628983703.

The spelling of 395063808 in words is "three hundred ninety-five million, sixty-three thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 64 76 96 114 128 152 192 228 256 304 384 456 512 608 768 912 1216 1536 1824 2432 3648 4864 7296 9728 13537 14592 27074 29184 40611 54148 81222 108296 162444 216592 257203 324888 433184 514406 649776 771609 866368 1028812 1299552 1543218 1732736 2057624 2599104 3086436 3465472 4115248 5198208 6172872 6930944 8230496 10396416 12345744 16460992 20792832 24691488 32921984 49382976 65843968 98765952 131687936 197531904 395063808