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105620427361 = 211434995527
BaseRepresentation
bin110001001011101110…
…1111101001001100001
3101002121212110122011001
41202113131331021201
53212302312133421
6120304340152001
710426241551051
oct1422735751141
9332555418131
10105620427361
114087aa83399
1218578098601
139c630699c7
14517d6a5561
152b32896691
hex189777d261

105620427361 has 4 divisors (see below), whose sum is σ = 105625444032. Its totient is φ = 105615410692.

The previous prime is 105620427331. The next prime is 105620427371. The reversal of 105620427361 is 163724026501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105620427361 - 213 = 105620419169 is a prime.

It is a super-2 number, since 2×1056204273612 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105620427361.

It is not an unprimeable number, because it can be changed into a prime (105620427331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2476621 + ... + 2518906.

It is an arithmetic number, because the mean of its divisors is an integer number (26406361008).

Almost surely, 2105620427361 is an apocalyptic number.

It is an amenable number.

105620427361 is a deficient number, since it is larger than the sum of its proper divisors (5016671).

105620427361 is an equidigital number, since it uses as much as digits as its factorization.

105620427361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016670.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 105620427361 in words is "one hundred five billion, six hundred twenty million, four hundred twenty-seven thousand, three hundred sixty-one".

Divisors: 1 21143 4995527 105620427361