Search a number
-
+
47179638880 = 2551126806613
BaseRepresentation
bin101011111100001000…
…000010100001100000
311111210000210222111121
4223330020002201200
51233110441421010
633401331222024
73260104212403
oct537410024140
9144700728447
1047179638880
1119010748aa0
129188447914
1345ab663baa
1423d7d29d3a
151361e873da
hexafc202860

47179638880 has 48 divisors (see below), whose sum is σ = 121594801104. Its totient is φ = 17156231680.

The previous prime is 47179638839. The next prime is 47179638889. The reversal of 47179638880 is 8883697174.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47179638889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13401547 + ... + 13405066.

It is an arithmetic number, because the mean of its divisors is an integer number (2533225023).

Almost surely, 247179638880 is an apocalyptic number.

47179638880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47179638880 is an abundant number, since it is smaller than the sum of its proper divisors (74415162224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47179638880 is a wasteful number, since it uses less digits than its factorization.

47179638880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26806639 (or 26806631 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 61.

The spelling of 47179638880 in words is "forty-seven billion, one hundred seventy-nine million, six hundred thirty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 352 440 880 1760 26806613 53613226 107226452 134033065 214452904 268066130 294872743 428905808 536132260 589745486 857811616 1072264520 1179490972 1474363715 2144529040 2358981944 2948727430 4289058080 4717963888 5897454860 9435927776 11794909720 23589819440 47179638880