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105105560025 = 3521401407467
BaseRepresentation
bin110000111100011000…
…1111001000111011001
3101001021222122122221110
41201320301321013121
53210224010410100
6120141304530533
710410420343104
oct1417061710731
9331258578843
10105105560025
11406363919a4
1218453780a49
139bb04aa78b
14513115d73b
152b02593250
hex1878c791d9

105105560025 has 12 divisors (see below), whose sum is σ = 173774526032. Its totient is φ = 56056298640.

The previous prime is 105105560023. The next prime is 105105560083. The reversal of 105105560025 is 520065501501.

It is not a de Polignac number, because 105105560025 - 21 = 105105560023 is a prime.

It is a super-2 number, since 2×1051055600252 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105105559974 and 105105560001.

It is not an unprimeable number, because it can be changed into a prime (105105560023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700703659 + ... + 700703808.

Almost surely, 2105105560025 is an apocalyptic number.

105105560025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105105560025 is a deficient number, since it is larger than the sum of its proper divisors (68668966007).

105105560025 is a wasteful number, since it uses less digits than its factorization.

105105560025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401407480 (or 1401407475 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 105105560025 in words is "one hundred five billion, one hundred five million, five hundred sixty thousand, twenty-five".

Divisors: 1 3 5 15 25 75 1401407467 4204222401 7007037335 21021112005 35035186675 105105560025