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100712275 = 524028491
BaseRepresentation
bin1100000000010…
…11111101010011
321000111201021021
412000023331103
5201240243100
613554340311
72332016536
oct600137523
9230451237
10100712275
1151938694
122988a697
1317b32a81
14d538a1d
158c95a1a
hex600bf53

100712275 has 6 divisors (see below), whose sum is σ = 124883252. Its totient is φ = 80569800.

The previous prime is 100712263. The next prime is 100712309. The reversal of 100712275 is 572217001.

It is a happy number.

It is not a de Polignac number, because 100712275 - 223 = 92323667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 4028491 = 100712275 / (1 + 0 + 0 + 7 + 1 + 2 + 2 + 7 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2014221 + ... + 2014270.

Almost surely, 2100712275 is an apocalyptic number.

100712275 is a deficient number, since it is larger than the sum of its proper divisors (24170977).

100712275 is an equidigital number, since it uses as much as digits as its factorization.

100712275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4028501 (or 4028496 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 100712275 is about 10035.5505578917. The cubic root of 100712275 is about 465.2583064020.

Adding to 100712275 its reverse (572217001), we get a palindrome (672929276).

The spelling of 100712275 in words is "one hundred million, seven hundred twelve thousand, two hundred seventy-five".

Divisors: 1 5 25 4028491 20142455 100712275