Search a number
-
+
478808874 = 2339379463
BaseRepresentation
bin11100100010100…
…000101100101010
31020100222000022000
4130202200230222
51440033340444
6115302311430
714602544145
oct3442405452
91210860260
10478808874
11226303215
12114428576
137827577b
144783b05c
152c07e469
hex1c8a0b2a

478808874 has 32 divisors (see below), whose sum is σ = 1065267840. Its totient is φ = 159415776.

The previous prime is 478808851. The next prime is 478808903.

It is a happy number.

478808874 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×4788088742 = 458515875642295752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 478808874.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45867 + ... + 55329.

It is an arithmetic number, because the mean of its divisors is an integer number (33289620).

Almost surely, 2478808874 is an apocalyptic number.

478808874 is an abundant number, since it is smaller than the sum of its proper divisors (586458966).

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

478808874 is a wasteful number, since it uses less digits than its factorization.

478808874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10411 (or 10405 counting only the distinct ones).

The product of its (nonzero) digits is 3211264, while the sum is 54.

The square root of 478808874 is about 21881.7018076748. The cubic root of 478808874 is about 782.3253389086.

The spelling of 478808874 in words is "four hundred seventy-eight million, eight hundred eight thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 9 18 27 54 937 1874 2811 5622 8433 9463 16866 18926 25299 28389 50598 56778 85167 170334 255501 511002 8866831 17733662 26600493 53200986 79801479 159602958 239404437 478808874