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672484280 = 235131293239
BaseRepresentation
bin101000000101010…
…100101110111000
31201212101202000012
4220011110232320
52334123444110
6150421401052
722444010366
oct5005245670
91655352005
10672484280
11315666436
12169269188
13a94270c0
1465454636
153e089905
hex28154bb8

672484280 has 32 divisors (see below), whose sum is σ = 1629482400. Its totient is φ = 248301696.

The previous prime is 672484279. The next prime is 672484291. The reversal of 672484280 is 82484276.

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 7 ways as a sum of consecutive naturals, for example, 646100 + ... + 647139.

It is an arithmetic number, because the mean of its divisors is an integer number (50921325).

Almost surely, 2672484280 is an apocalyptic number.

It is an amenable number.

672484280 is an abundant number, since it is smaller than the sum of its proper divisors (956998120).

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

672484280 is a wasteful number, since it uses less digits than its factorization.

672484280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293263 (or 1293259 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 672484280 is about 25932.3018646629. The cubic root of 672484280 is about 876.1141855421.

The spelling of 672484280 in words is "six hundred seventy-two million, four hundred eighty-four thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 1293239 2586478 5172956 6466195 10345912 12932390 16812107 25864780 33624214 51729560 67248428 84060535 134496856 168121070 336242140 672484280