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8042408 = 2311591549
BaseRepresentation
bin11110101011011110101000
3120010121002222
4132223132220
54024324113
6444213212
7125234153
oct36533650
916117088
108042408
1145a3420
12283a208
13188782a
1410d4c9a
15a8ce08
hex7ab7a8

8042408 has 32 divisors (see below), whose sum is σ = 16740000. Its totient is φ = 3591360.

The previous prime is 8042407. The next prime is 8042413.

8042408 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (8042407) 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, 4418 + ... + 5966.

It is an arithmetic number, because the mean of its divisors is an integer number (523125).

Almost surely, 28042408 is an apocalyptic number.

8042408 is a gapful number since it is divisible by the number (88) 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 8042408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8370000).

8042408 is an abundant number, since it is smaller than the sum of its proper divisors (8697592).

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

8042408 is a wasteful number, since it uses less digits than its factorization.

8042408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625 (or 1621 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 8042408 is about 2835.9139620235. The cubic root of 8042408 is about 200.3527773748.

The spelling of 8042408 in words is "eight million, forty-two thousand, four hundred eight".

Divisors: 1 2 4 8 11 22 44 59 88 118 236 472 649 1298 1549 2596 3098 5192 6196 12392 17039 34078 68156 91391 136312 182782 365564 731128 1005301 2010602 4021204 8042408