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804480 = 2735419
BaseRepresentation
bin11000100011010000000
31111212112120
43010122000
5201220410
625124240
76560265
oct3043200
91455476
10804480
114aa466
12329680
13222231
1416d26c
1510d570
hexc4680

804480 has 64 divisors (see below), whose sum is σ = 2570400. Its totient is φ = 214016.

The previous prime is 804473. The next prime is 804493. The reversal of 804480 is 84408.

It is a tau number, because it is divible by the number of its divisors (64).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

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 804480.

It is a congruent number.

It is an unprimeable number.

804480 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1711 + ... + 2129.

2804480 is an apocalyptic number.

804480 is a gapful number since it is divisible by the number (80) 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 804480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1285200).

804480 is an abundant number, since it is smaller than the sum of its proper divisors (1765920).

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

804480 is a wasteful number, since it uses less digits than its factorization.

804480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 429 counting only the distinct ones).

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

The square root of 804480 is about 896.9280907631. The cubic root of 804480 is about 93.0047401908.

Adding to 804480 its reverse (84408), we get a palindrome (888888).

It can be divided in two parts, 80 and 4480, that added together give a triangular number (4560 = T95).

The spelling of 804480 in words is "eight hundred four thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 320 384 419 480 640 838 960 1257 1676 1920 2095 2514 3352 4190 5028 6285 6704 8380 10056 12570 13408 16760 20112 25140 26816 33520 40224 50280 53632 67040 80448 100560 134080 160896 201120 268160 402240 804480