Search a number
-
+
8240818480 = 245103010231
BaseRepresentation
bin1111010110011000…
…01110100100110000
3210021022112221202021
413223030032210300
5113334122142410
63441421201224
7411133541566
oct75314164460
923238487667
108240818480
1135497aa994
12171ba00214
13a143bc66b
14582673a36
15333718eda
hex1eb30e930

8240818480 has 20 divisors (see below), whose sum is σ = 19159903152. Its totient is φ = 3296327360.

The previous prime is 8240818477. The next prime is 8240818483. The reversal of 8240818480 is 848180428.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8240818477) and next prime (8240818483).

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×82408184802 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8240818483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51505036 + ... + 51505195.

Almost surely, 28240818480 is an apocalyptic number.

8240818480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8240818480 is an abundant number, since it is smaller than the sum of its proper divisors (10919084672).

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

8240818480 is a wasteful number, since it uses less digits than its factorization.

8240818480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103010244 (or 103010238 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 43.

The square root of 8240818480 is about 90778.9539485888. The cubic root of 8240818480 is about 2019.8701416374.

The spelling of 8240818480 in words is "eight billion, two hundred forty million, eight hundred eighteen thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 103010231 206020462 412040924 515051155 824081848 1030102310 1648163696 2060204620 4120409240 8240818480