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105501001075 = 5212391340573
BaseRepresentation
bin110001001000001011…
…0011000010101110011
3101002022112202011002021
41202100112120111303
53212031224013300
6120244432332311
710423261466341
oct1422026302563
9332275664067
10105501001075
1140819623688
12185440a4097
139c443b3c72
14516b898991
152b27155d1a
hex1890598573

105501001075 has 12 divisors (see below), whose sum is σ = 130832183248. Its totient is φ = 84393741600.

The previous prime is 105501001051. The next prime is 105501001091. The reversal of 105501001075 is 570100105501.

It is not a de Polignac number, because 105501001075 - 27 = 105501000947 is a prime.

It is a super-2 number, since 2×1055010010752 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139489 + ... + 480061.

Almost surely, 2105501001075 is an apocalyptic number.

105501001075 is a deficient number, since it is larger than the sum of its proper divisors (25331182173).

105501001075 is a wasteful number, since it uses less digits than its factorization.

105501001075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352974 (or 352969 counting only the distinct ones).

The product of its (nonzero) digits is 875, while the sum is 25.

Adding to 105501001075 its reverse (570100105501), we get a palindrome (675601106576).

The spelling of 105501001075 in words is "one hundred five billion, five hundred one million, one thousand, seventy-five".

Divisors: 1 5 25 12391 61955 309775 340573 1702865 8514325 4220040043 21100200215 105501001075