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2134653805 = 52318562207
BaseRepresentation
bin111111100111100…
…0011101101101101
312111202201122112001
41333033003231231
513332432410210
6551453012301
7103620154324
oct17717035555
95452648461
102134653805
119a5a57aa9
124b6a84091
1328033217b
1416370b0bb
15c761003a
hex7f3c3b6d

2134653805 has 8 divisors (see below), whose sum is σ = 2672957952. Its totient is φ = 1633474128.

The previous prime is 2134653803. The next prime is 2134653817. The reversal of 2134653805 is 5083564312.

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 2134653805 - 21 = 2134653803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134653803) 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, 9280989 + ... + 9281218.

It is an arithmetic number, because the mean of its divisors is an integer number (334119744).

Almost surely, 22134653805 is an apocalyptic number.

It is an amenable number.

2134653805 is a deficient number, since it is larger than the sum of its proper divisors (538304147).

2134653805 is a wasteful number, since it uses less digits than its factorization.

2134653805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18562235.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 2134653805 is about 46202.3138489838. The cubic root of 2134653805 is about 1287.5847291460.

The spelling of 2134653805 in words is "two billion, one hundred thirty-four million, six hundred fifty-three thousand, eight hundred five".

Divisors: 1 5 23 115 18562207 92811035 426930761 2134653805