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4080078960 = 243561327733
BaseRepresentation
bin1111001100110001…
…0001000001110000
3101112100101111010120
43303030101001300
531324000011320
61512510130240
7203052045636
oct36314210160
911470344116
104080078960
111804109791
1295a4b0980
135003aba09
142a9c3b356
1518d2e2440
hexf3311070

4080078960 has 80 divisors (see below), whose sum is σ = 12669334944. Its totient is φ = 1086206976.

The previous prime is 4080078949. The next prime is 4080078973. The reversal of 4080078960 is 698700804.

It is a happy number.

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

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 133254 + ... + 160986.

Almost surely, 24080078960 is an apocalyptic number.

4080078960 is a gapful number since it is divisible by the number (40) 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 4080078960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6334667472).

4080078960 is an abundant number, since it is smaller than the sum of its proper divisors (8589255984).

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

4080078960 is a wasteful number, since it uses less digits than its factorization.

4080078960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28362 (or 28356 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 4080078960 is about 63875.4957710701. The cubic root of 4080078960 is about 1597.9242561359.

The spelling of 4080078960 in words is "four billion, eighty million, seventy-eight thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 613 1226 1839 2452 3065 3678 4904 6130 7356 9195 9808 12260 14712 18390 24520 27733 29424 36780 49040 55466 73560 83199 110932 138665 147120 166398 221864 277330 332796 415995 443728 554660 665592 831990 1109320 1331184 1663980 2218640 3327960 6655920 17000329 34000658 51000987 68001316 85001645 102001974 136002632 170003290 204003948 255004935 272005264 340006580 408007896 510009870 680013160 816015792 1020019740 1360026320 2040039480 4080078960