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100231031441 = 1572333327361
BaseRepresentation
bin101110101011000111…
…1000010101010010001
3100120201021100221210202
41131112033002222101
53120233121001231
6114013454504545
710145550465362
oct1352617025221
9316637327722
10100231031441
1139564893482
1217513205155
1395b4640338
144bcb9ddb69
1529196735cb
hex17563c2a91

100231031441 has 8 divisors (see below), whose sum is σ = 100877455464. Its totient is φ = 99584709120.

The previous prime is 100231031437. The next prime is 100231031471. The reversal of 100231031441 is 144130132001.

It can be written as a sum of positive squares in 4 ways, for example, as 197993041 + 100033038400 = 14071^2 + 316280^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100231031441 - 22 = 100231031437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100231031401) 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, 3649601 + ... + 3676961.

It is an arithmetic number, because the mean of its divisors is an integer number (12609681933).

Almost surely, 2100231031441 is an apocalyptic number.

It is an amenable number.

100231031441 is a deficient number, since it is larger than the sum of its proper divisors (646424023).

100231031441 is a wasteful number, since it uses less digits than its factorization.

100231031441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50851.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 100231031441 its reverse (144130132001), we get a palindrome (244361163442).

The spelling of 100231031441 in words is "one hundred billion, two hundred thirty-one million, thirty-one thousand, four hundred forty-one".

Divisors: 1 157 23333 27361 3663281 4295677 638414213 100231031441