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105487348420 = 2255274367421
BaseRepresentation
bin110001000111110001…
…0010011001011000100
3101002021121001112011101
41202033202103023010
53212014230122140
6120243223545444
710423034444566
oct1421742231304
9332247045141
10105487348420
11408119491a3
121853b5bb284
139c4161397c
145169b43336
152b25d5a99a
hex188f8932c4

105487348420 has 12 divisors (see below), whose sum is σ = 221523431724. Its totient is φ = 42194939360.

The previous prime is 105487348411. The next prime is 105487348441. The reversal of 105487348420 is 24843784501.

It can be written as a sum of positive squares in 2 ways, for example, as 80143345216 + 25344003204 = 283096^2 + 159198^2 .

It is a super-2 number, since 2×1054873484202 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2637183691 + ... + 2637183730.

It is an arithmetic number, because the mean of its divisors is an integer number (18460285977).

Almost surely, 2105487348420 is an apocalyptic number.

105487348420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105487348420 is an abundant number, since it is smaller than the sum of its proper divisors (116036083304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105487348420 is a wasteful number, since it uses less digits than its factorization.

105487348420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274367430 (or 5274367428 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 46.

The spelling of 105487348420 in words is "one hundred five billion, four hundred eighty-seven million, three hundred forty-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 5274367421 10548734842 21097469684 26371837105 52743674210 105487348420