Search a number
-
+
47908925891 = 1151155926699
BaseRepresentation
bin101100100111100110…
…000011000111000011
311120122212002121012122
4230213212003013003
51241104141112031
634001542314455
73314141102531
oct544746030703
9146585077178
1047908925891
1119355381132
129350728a2b
134696788878
142466b29151
1513a5ee247b
hexb279831c3

47908925891 has 8 divisors (see below), whose sum is σ = 47983104000. Its totient is φ = 47834806600.

The previous prime is 47908925879. The next prime is 47908925929. The reversal of 47908925891 is 19852980974.

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 47908925891 - 222 = 47904731587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47908325891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1781060 + ... + 1807758.

It is an arithmetic number, because the mean of its divisors is an integer number (5997888000).

Almost surely, 247908925891 is an apocalyptic number.

47908925891 is a deficient number, since it is larger than the sum of its proper divisors (74178109).

47908925891 is a wasteful number, since it uses less digits than its factorization.

47908925891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29409.

The product of its (nonzero) digits is 13063680, while the sum is 62.

The spelling of 47908925891 in words is "forty-seven billion, nine hundred eight million, nine hundred twenty-five thousand, eight hundred ninety-one".

Divisors: 1 1151 1559 26699 1794409 30730549 41623741 47908925891