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2105554541 = 2983874763
BaseRepresentation
bin111110110000000…
…0011011001101101
312102201222020211112
41331200003121231
513303010221131
6544533201405
7103114626656
oct17540033155
95381866745
102105554541
11990592322
124a9190265
132772b417c
1415d8d452d
15c4cb302b
hex7d80366d

2105554541 has 8 divisors (see below), whose sum is σ = 2204405280. Its totient is φ = 2008453552.

The previous prime is 2105554511. The next prime is 2105554543. The reversal of 2105554541 is 1454555012.

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 2105554541 - 222 = 2101360237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2105554498 and 2105554507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105554543) 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, 434975 + ... + 439788.

It is an arithmetic number, because the mean of its divisors is an integer number (275550660).

Almost surely, 22105554541 is an apocalyptic number.

It is an amenable number.

2105554541 is a deficient number, since it is larger than the sum of its proper divisors (98850739).

2105554541 is an equidigital number, since it uses as much as digits as its factorization.

2105554541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874875.

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 2105554541 is about 45886.3219380242. The cubic root of 2105554541 is about 1281.7072232903.

The spelling of 2105554541 in words is "two billion, one hundred five million, five hundred fifty-four thousand, five hundred forty-one".

Divisors: 1 29 83 2407 874763 25368127 72605329 2105554541