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105431052 = 22318148541
BaseRepresentation
bin1100100100011…
…00000000001100
321100101110012210
412102030000030
5203442243202
614243430420
72420102106
oct622140014
9240343183
10105431052
1154570a01
122b385410
1318ac584c
1410006576
1593c8c6c
hex648c00c

105431052 has 24 divisors (see below), whose sum is σ = 247370032. Its totient is φ = 34948800.

The previous prime is 105431023. The next prime is 105431063. The reversal of 105431052 is 250134501.

It is a super-2 number, since 2×1054310522 = 22231413451653408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22099 + ... + 26442.

Almost surely, 2105431052 is an apocalyptic number.

105431052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105431052 is an abundant number, since it is smaller than the sum of its proper divisors (141938980).

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

105431052 is a wasteful number, since it uses less digits than its factorization.

105431052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48729 (or 48727 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 105431052 is about 10267.9624074107. The cubic root of 105431052 is about 472.4140948498.

Adding to 105431052 its reverse (250134501), we get a palindrome (355565553).

The spelling of 105431052 in words is "one hundred five million, four hundred thirty-one thousand, fifty-two".

Divisors: 1 2 3 4 6 12 181 362 543 724 1086 2172 48541 97082 145623 194164 291246 582492 8785921 17571842 26357763 35143684 52715526 105431052