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4004008080 = 243571234977
BaseRepresentation
bin1110111010101000…
…0101000010010000
3101100001020200111120
43232222011002100
531200011224310
61501151442240
7201136335642
oct35652050220
911301220446
104004008080
111775181596
12938b26380
134ba6c5b67
1429dab8892
151867b7b70
hexeea85090

4004008080 has 80 divisors (see below), whose sum is σ = 12587301504. Its totient is φ = 1052692480.

The previous prime is 4004008033. The next prime is 4004008091. The reversal of 4004008080 is 808004004.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a self number, because there is not a number n which added to its sum of digits gives 4004008080.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100449 + ... + 134528.

Almost surely, 24004008080 is an apocalyptic number.

4004008080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4004008080 is an abundant number, since it is smaller than the sum of its proper divisors (8583293424).

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

4004008080 is a wasteful number, since it uses less digits than its factorization.

4004008080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235064 (or 235058 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 4004008080 is about 63277.2319242870. The cubic root of 4004008080 is about 1587.9310775096.

The spelling of 4004008080 in words is "four billion, four million, eight thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 71 80 120 142 213 240 284 355 426 568 710 852 1065 1136 1420 1704 2130 2840 3408 4260 5680 8520 17040 234977 469954 704931 939908 1174885 1409862 1879816 2349770 2819724 3524655 3759632 4699540 5639448 7049310 9399080 11278896 14098620 16683367 18798160 28197240 33366734 50050101 56394480 66733468 83416835 100100202 133466936 166833670 200200404 250250505 266933872 333667340 400400808 500501010 667334680 800801616 1001002020 1334669360 2002004040 4004008080