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6472872 = 233471427
BaseRepresentation
bin11000101100010010101000
3110011212010000
4120230102220
53124112442
6350423000
7106006230
oct30542250
913155100
106472872
11372118a
122201a60
131458303
14c06cc0
1587cd4c
hex62c4a8

6472872 has 80 divisors (see below), whose sum is σ = 20734560. Its totient is φ = 1848096.

The previous prime is 6472871. The next prime is 6472877. The reversal of 6472872 is 2782746.

6472872 is a `hidden beast` number, since 647 + 2 + 8 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (6472871) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3823 + ... + 5249.

It is an arithmetic number, because the mean of its divisors is an integer number (259182).

Almost surely, 26472872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6472872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10367280).

6472872 is an abundant number, since it is smaller than the sum of its proper divisors (14261688).

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

6472872 is a wasteful number, since it uses less digits than its factorization.

6472872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452 (or 1439 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 6472872 is about 2544.1839556133. The cubic root of 6472872 is about 186.3655661618.

It can be divided in two parts, 6 and 472872, that added together give a triangular number (472878 = T972).

The spelling of 6472872 in words is "six million, four hundred seventy-two thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 81 84 108 126 162 168 189 216 252 324 378 504 567 648 756 1134 1427 1512 2268 2854 4281 4536 5708 8562 9989 11416 12843 17124 19978 25686 29967 34248 38529 39956 51372 59934 77058 79912 89901 102744 115587 119868 154116 179802 231174 239736 269703 308232 359604 462348 539406 719208 809109 924696 1078812 1618218 2157624 3236436 6472872