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105551030 = 2513811931
BaseRepresentation
bin1100100101010…
…01010010110110
321100121112210102
412102221102312
5204010113110
614250154102
72421111644
oct622512266
9240545712
10105551030
1154643062
122b422932
1318b38340
1410038194
1593ee5a5
hex64a94b6

105551030 has 16 divisors (see below), whose sum is σ = 204606864. Its totient is φ = 38972640.

The previous prime is 105551009. The next prime is 105551041. The reversal of 105551030 is 30155501.

It is a happy number.

It is a super-2 number, since 2×1055510302 = 22282039868121800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105550993 and 105551011.

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 7 ways as a sum of consecutive naturals, for example, 405836 + ... + 406095.

It is an arithmetic number, because the mean of its divisors is an integer number (12787929).

Almost surely, 2105551030 is an apocalyptic number.

105551030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105551030 is a deficient number, since it is larger than the sum of its proper divisors (99055834).

105551030 is a wasteful number, since it uses less digits than its factorization.

105551030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811951.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 105551030 is about 10273.8030933048. The cubic root of 105551030 is about 472.5932255419.

The spelling of 105551030 in words is "one hundred five million, five hundred fifty-one thousand, thirty".

Divisors: 1 2 5 10 13 26 65 130 811931 1623862 4059655 8119310 10555103 21110206 52775515 105551030