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105515005 = 5176531901
BaseRepresentation
bin1100100101000…
…00011111111101
321100112201101011
412102200133331
5204002440010
614245315221
72420601631
oct622403775
9240481334
10105515005
1154618a92
122b405b11
1318b24b1b
1410028dc1
1593e3a8a
hex64a07fd

105515005 has 16 divisors (see below), whose sum is σ = 134342064. Its totient is φ = 79283200.

The previous prime is 105514987. The next prime is 105515051. The reversal of 105515005 is 500515501.

It can be written as a sum of positive squares in 8 ways, for example, as 9847044 + 95667961 = 3138^2 + 9781^2 .

It is not a de Polignac number, because 105515005 - 217 = 105383933 is a prime.

It is a super-3 number, since 3×1055150053 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54555 + ... + 56455.

It is an arithmetic number, because the mean of its divisors is an integer number (8396379).

Almost surely, 2105515005 is an apocalyptic number.

It is an amenable number.

105515005 is a deficient number, since it is larger than the sum of its proper divisors (28827059).

105515005 is a wasteful number, since it uses less digits than its factorization.

105515005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 105515005 is about 10272.0496980885. The cubic root of 105515005 is about 472.5394534210.

The spelling of 105515005 in words is "one hundred five million, five hundred fifteen thousand, five".

Divisors: 1 5 17 85 653 1901 3265 9505 11101 32317 55505 161585 1241353 6206765 21103001 105515005