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105501144 = 23371075869
BaseRepresentation
bin1100100100111…
…01000111011000
321100112000100210
412102131013120
5204002014034
614245131120
72420513340
oct622350730
9240460323
10105501144
1154609631
122b3b9aa0
1318b1b718
1410023d20
1593de8e9
hex649d1d8

105501144 has 64 divisors (see below), whose sum is σ = 304300800. Its totient is φ = 29856384.

The previous prime is 105501127. The next prime is 105501173. The reversal of 105501144 is 441105501.

It is a super-2 number, since 2×1055011442 = 22260982770617472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 105501144.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 15042 + ... + 20910.

It is an arithmetic number, because the mean of its divisors is an integer number (4754700).

Almost surely, 2105501144 is an apocalyptic number.

105501144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105501144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152150400).

105501144 is an abundant number, since it is smaller than the sum of its proper divisors (198799656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105501144 is a wasteful number, since it uses less digits than its factorization.

105501144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992 (or 5988 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 105501144 is about 10271.3749809848. The cubic root of 105501144 is about 472.5187607679.

Adding to 105501144 its reverse (441105501), we get a palindrome (546606645).

The spelling of 105501144 in words is "one hundred five million, five hundred one thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 107 168 214 321 428 642 749 856 1284 1498 2247 2568 2996 4494 5869 5992 8988 11738 17607 17976 23476 35214 41083 46952 70428 82166 123249 140856 164332 246498 328664 492996 627983 985992 1255966 1883949 2511932 3767898 4395881 5023864 7535796 8791762 13187643 15071592 17583524 26375286 35167048 52750572 105501144