Search a number
-
+
8008408040 = 2351910537379
BaseRepresentation
bin1110111010101011…
…01001101111101000
3202200010020021120012
413131111221233220
5112400123024130
63402355551052
7402312226253
oct73525515750
922603207505
108008408040
11343a5a0546
121675bbb488
139a81c81a9
1455d85609a
1531d10b995
hex1dd569be8

8008408040 has 32 divisors (see below), whose sum is σ = 18967284000. Its totient is φ = 3034764864.

The previous prime is 8008408007. The next prime is 8008408061. The reversal of 8008408040 is 408048008.

It is a junction number, because it is equal to n+sod(n) for n = 8008407988 and 8008408006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5267930 + ... + 5269449.

It is an arithmetic number, because the mean of its divisors is an integer number (592727625).

Almost surely, 28008408040 is an apocalyptic number.

It is an amenable number.

8008408040 is an abundant number, since it is smaller than the sum of its proper divisors (10958875960).

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

8008408040 is a wasteful number, since it uses less digits than its factorization.

8008408040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10537409 (or 10537405 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 8008408040 is about 89489.7091290390. The cubic root of 8008408040 is about 2000.7004246740.

The spelling of 8008408040 in words is "eight billion, eight million, four hundred eight thousand, forty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 10537379 21074758 42149516 52686895 84299032 105373790 200210201 210747580 400420402 421495160 800840804 1001051005 1601681608 2002102010 4004204020 8008408040