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1006493728 = 2571974567
BaseRepresentation
bin111011111111011…
…110000000100000
32121010220011211111
4323333132000200
54030130244403
6243512353104
733641025022
oct7377360040
92533804744
101006493728
114771596a9
122410a5794
131306a1b26
149795c012
155d56556d
hex3bfde020

1006493728 has 48 divisors (see below), whose sum is σ = 2030603904. Its totient is φ = 490936320.

The previous prime is 1006493723. The next prime is 1006493779. The reversal of 1006493728 is 8273946001.

It is not an unprimeable number, because it can be changed into a prime (1006493723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218101 + ... + 222667.

It is an arithmetic number, because the mean of its divisors is an integer number (42304248).

Almost surely, 21006493728 is an apocalyptic number.

It is an amenable number.

1006493728 is an abundant number, since it is smaller than the sum of its proper divisors (1024110176).

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

1006493728 is an equidigital number, since it uses as much as digits as its factorization.

1006493728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745 (or 4737 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1006493728 is about 31725.2853099858. The cubic root of 1006493728 is about 1002.1599074410.

The spelling of 1006493728 in words is "one billion, six million, four hundred ninety-three thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 16 32 71 97 142 194 284 388 568 776 1136 1552 2272 3104 4567 6887 9134 13774 18268 27548 36536 55096 73072 110192 146144 220384 324257 442999 648514 885998 1297028 1771996 2594056 3543992 5188112 7087984 10376224 14175968 31452929 62905858 125811716 251623432 503246864 1006493728