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105551013253 = 719985780513
BaseRepresentation
bin110001001001101010…
…1001010010110000101
3101002110000212000220011
41202103111022112011
53212132024411003
6120253420310221
710424436544420
oct1422325122605
9332400760804
10105551013253
1140844882564
12185589a2371
139c51874a7a
1451743969b7
152b2b73446d
hex189354a585

105551013253 has 16 divisors (see below), whose sum is σ = 126993121920. Its totient is φ = 85700837376.

The previous prime is 105551013229. The next prime is 105551013311. The reversal of 105551013253 is 352310155501.

It is not a de Polignac number, because 105551013253 - 217 = 105550882181 is a prime.

It is a super-2 number, since 2×1055510132532 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105551013553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1270725 + ... + 1351237.

It is an arithmetic number, because the mean of its divisors is an integer number (7937070120).

Almost surely, 2105551013253 is an apocalyptic number.

It is an amenable number.

105551013253 is a deficient number, since it is larger than the sum of its proper divisors (21442108667).

105551013253 is an equidigital number, since it uses as much as digits as its factorization.

105551013253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90396.

The product of its (nonzero) digits is 11250, while the sum is 31.

Adding to 105551013253 its reverse (352310155501), we get a palindrome (457861168754).

The spelling of 105551013253 in words is "one hundred five billion, five hundred fifty-one million, thirteen thousand, two hundred fifty-three".

Divisors: 1 7 19 133 9857 68999 80513 187283 563591 1310981 1529747 10708229 793616641 5555316487 15078716179 105551013253