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1428130528 = 251110094021
BaseRepresentation
bin101010100011111…
…1000101011100000
310200112021112210021
41111013320223200
510411100134103
6353413443224
750250623566
oct12507705340
93615245707
101428130528
11673162670
1233a340514
13199b4a866
14d7955a36
158559ebbd
hex551f8ae0

1428130528 has 48 divisors (see below), whose sum is σ = 3071038320. Its totient is φ = 648345600.

The previous prime is 1428130523. The next prime is 1428130601. The reversal of 1428130528 is 8250318241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1428130493 and 1428130502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428130523) 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, 353158 + ... + 357178.

It is an arithmetic number, because the mean of its divisors is an integer number (63979965).

Almost surely, 21428130528 is an apocalyptic number.

It is an amenable number.

1428130528 is an abundant number, since it is smaller than the sum of its proper divisors (1642907792).

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

1428130528 is a wasteful number, since it uses less digits than its factorization.

1428130528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051 (or 5043 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 1428130528 is about 37790.6142845019. The cubic root of 1428130528 is about 1126.1320037438.

Adding to 1428130528 its reverse (8250318241), we get a palindrome (9678448769).

The spelling of 1428130528 in words is "one billion, four hundred twenty-eight million, one hundred thirty thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 1009 2018 4021 4036 8042 8072 11099 16084 16144 22198 32168 32288 44231 44396 64336 88462 88792 128672 176924 177584 353848 355168 707696 1415392 4057189 8114378 16228756 32457512 44629079 64915024 89258158 129830048 178516316 357032632 714065264 1428130528