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406105613423 = 23131913386479
BaseRepresentation
bin1011110100011011100…
…01111110010001101111
31102211020012100200001022
411322031301332101233
523123201014112143
6510321244404355
741224450521146
oct5721561762157
91384205320038
10406105613423
11147257039104
1266857b466bb
132c3ac564953
141592702475d
15a86c944268
hex5e8dc7e46f

406105613423 has 8 divisors (see below), whose sum is σ = 424083686400. Its totient is φ = 388154316088.

The previous prime is 406105613383. The next prime is 406105613461. The reversal of 406105613423 is 324316501604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 406105613423 - 26 = 406105613359 is a prime.

It is a super-2 number, since 2×4061056134232 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406105613323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6662903 + ... + 6723576.

It is an arithmetic number, because the mean of its divisors is an integer number (53010460800).

Almost surely, 2406105613423 is an apocalyptic number.

406105613423 is a deficient number, since it is larger than the sum of its proper divisors (17978072977).

406105613423 is a wasteful number, since it uses less digits than its factorization.

406105613423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13387821.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 406105613423 in words is "four hundred six billion, one hundred five million, six hundred thirteen thousand, four hundred twenty-three".

Divisors: 1 23 1319 30337 13386479 307889017 17656765801 406105613423