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28814940075 = 35217211532
BaseRepresentation
bin11010110101100000…
…010001011110101011
32202101011101121202210
4122311200101132223
5433003111040300
621123140100203
72040026643435
oct326540213653
982334347683
1028814940075
1111247311a69
125702094663
132942a01bcc
141574cc7655
15b39a90050
hex6b58117ab

28814940075 has 54 divisors (see below), whose sum is σ = 50651872284. Its totient is φ = 14451425280.

The previous prime is 28814940043. The next prime is 28814940103. The reversal of 28814940075 is 57004941882.

It is a happy number.

It is not a de Polignac number, because 28814940075 - 25 = 28814940043 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 24990699 + ... + 24991851.

Almost surely, 228814940075 is an apocalyptic number.

28814940075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28814940075 is a deficient number, since it is larger than the sum of its proper divisors (21836932209).

28814940075 is an equidigital number, since it uses as much as digits as its factorization.

28814940075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

Multiplying 28814940075 by its sum of digits (48), we get a square (1383117123600 = 11760602).

The spelling of 28814940075 in words is "twenty-eight billion, eight hundred fourteen million, nine hundred forty thousand, seventy-five".

Divisors: 1 3 5 15 17 25 51 75 85 255 289 425 867 1153 1275 1445 3459 4335 5765 7225 17295 19601 21675 28825 58803 86475 98005 294015 333217 490025 999651 1329409 1470075 1666085 3988227 4998255 6647045 8330425 19941135 22599953 24991275 33235225 67799859 99705675 112999765 338999295 384199201 564998825 1152597603 1694996475 1920996005 5762988015 9604980025 28814940075