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105445970 = 2571506371
BaseRepresentation
bin1100100100011…
…11101001010010
321100102012200022
412102033221102
5203443232340
614244023442
72420163440
oct622175122
9240365608
10105445970
1154581133
122b391b82
1318acc586
141000bb90
1593cd3b5
hex648fa52

105445970 has 16 divisors (see below), whose sum is σ = 216917568. Its totient is φ = 36152880.

The previous prime is 105445969. The next prime is 105445987. The reversal of 105445970 is 79544501.

It is a super-2 number, since 2×1054459702 = 22237705178481800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 105445970.

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, 753116 + ... + 753255.

It is an arithmetic number, because the mean of its divisors is an integer number (13557348).

Almost surely, 2105445970 is an apocalyptic number.

105445970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105445970 is an abundant number, since it is smaller than the sum of its proper divisors (111471598).

105445970 is a wasteful number, since it uses less digits than its factorization.

105445970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506385.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 105445970 is about 10268.6888160076. The cubic root of 105445970 is about 472.4363752595.

The spelling of 105445970 in words is "one hundred five million, four hundred forty-five thousand, nine hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 1506371 3012742 7531855 10544597 15063710 21089194 52722985 105445970