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28132011076 = 2213264512
BaseRepresentation
bin11010001100110011…
…000110110001000100
32200121120100020022011
4122030303012301010
5430103243323301
620531302344004
72014065102001
oct321463066104
980546306264
1028132011076
1110a26872334
12555142b004
13286438ba00
14150c3148a8
15ae9b40a51
hex68ccc6c44

28132011076 has 27 divisors (see below), whose sum is σ = 53317593693. Its totient is φ = 12981992400.

The previous prime is 28132011071. The next prime is 28132011107. The reversal of 28132011076 is 67011023182.

The square root of 28132011076 is 167726.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4161540100 + 23970470976 = 64510^2 + 154824^2 .

It is not an unprimeable number, because it can be changed into a prime (28132011071) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4357651 + ... + 4364101.

Almost surely, 228132011076 is an apocalyptic number.

28132011076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28132011076 is the 167726-th square number.

It is an amenable number.

28132011076 is a deficient number, since it is larger than the sum of its proper divisors (25185582617).

28132011076 is an frugal number, since it uses more digits than its factorization.

28132011076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12932 (or 6466 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 28132011076 in words is "twenty-eight billion, one hundred thirty-two million, eleven thousand, seventy-six".

Divisors: 1 2 4 13 26 52 169 338 676 6451 12902 25804 83863 167726 335452 1090219 2180438 4360876 41615401 83230802 166461604 541000213 1082000426 2164000852 7033002769 14066005538 28132011076