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47152819609 = 726724632
BaseRepresentation
bin101011111010100001…
…101110110110011001
311111201011100102101021
4223322201232312121
51233032110211414
633354532322441
73256330232200
oct537241566631
9144634312337
1047152819609
1118aa75a0305
12917b473421
1345a5c338bc
1423d4548237
15135e93ac24
hexafa86ed99

47152819609 has 27 divisors (see below), whose sum is σ = 55802656917. Its totient is φ = 39727477944.

The previous prime is 47152819579. The next prime is 47152819697. The reversal of 47152819609 is 90691825174.

The square root of 47152819609 is 217147.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 47152819609 - 235 = 12793081241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47152810609) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 101841712 + ... + 101842174.

It is an arithmetic number, because the mean of its divisors is an integer number (2066765071).

Almost surely, 247152819609 is an apocalyptic number.

47152819609 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

47152819609 is the 217147-th square number.

47152819609 is the 108574-th centered octagonal number.

It is an amenable number.

47152819609 is a deficient number, since it is larger than the sum of its proper divisors (8649837308).

47152819609 is an frugal number, since it uses more digits than its factorization.

47152819609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 52.

It can be divided in two parts, 47152 and 819609, that added together give a square (866761 = 9312).

The spelling of 47152819609 in words is "forty-seven billion, one hundred fifty-two million, eight hundred nineteen thousand, six hundred nine".

Divisors: 1 7 49 67 463 469 3241 3283 4489 22687 31021 31423 214369 217147 219961 1500583 1520029 2078407 10504081 14362723 14548849 100539061 101841943 703773427 962302441 6736117087 47152819609