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8145748705 = 57122945771
BaseRepresentation
bin1111001011000011…
…00100001011100001
3210000200122220112111
413211201210023201
5113140302424310
63424143355321
7405600502333
oct74541441341
923020586474
108145748705
113500076626
1216b3bb2b41
139ca7b3c63
14573ba7453
1532a1da28a
hex1e58642e1

8145748705 has 8 divisors (see below), whose sum is σ = 9912573504. Its totient is φ = 6424815600.

The previous prime is 8145748703. The next prime is 8145748711. The reversal of 8145748705 is 5078475418.

8145748705 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8145748705 - 21 = 8145748703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8145748703) 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, 11472531 + ... + 11473240.

It is an arithmetic number, because the mean of its divisors is an integer number (1239071688).

Almost surely, 28145748705 is an apocalyptic number.

It is an amenable number.

8145748705 is a deficient number, since it is larger than the sum of its proper divisors (1766824799).

8145748705 is a wasteful number, since it uses less digits than its factorization.

8145748705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22945847.

The product of its (nonzero) digits is 1254400, while the sum is 49.

The square root of 8145748705 is about 90253.8016096829. The cubic root of 8145748705 is about 2012.0727036962.

The spelling of 8145748705 in words is "eight billion, one hundred forty-five million, seven hundred forty-eight thousand, seven hundred five".

Divisors: 1 5 71 355 22945771 114728855 1629149741 8145748705