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47827680 = 2535372693
BaseRepresentation
bin1011011001110…
…0101011100000
310022222220020120
42312130223200
544220441210
64425040240
71120346205
oct266345340
9108886216
1047827680
1124aa770a
1214026080
139ba7704
1464cdcac
1542eb270
hex2d9cae0

47827680 has 96 divisors (see below), whose sum is σ = 154786464. Its totient is φ = 12404736.

The previous prime is 47827673. The next prime is 47827687. The reversal of 47827680 is 8672874.

47827680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47827673) and next prime (47827687).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47827687) 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 15 ways as a sum of consecutive naturals, for example, 16414 + ... + 19106.

It is an arithmetic number, because the mean of its divisors is an integer number (1612359).

Almost surely, 247827680 is an apocalyptic number.

47827680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47827680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77393232).

47827680 is an abundant number, since it is smaller than the sum of its proper divisors (106958784).

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

47827680 is a wasteful number, since it uses less digits than its factorization.

47827680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748 (or 2740 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 47827680 is about 6915.7559239753. The cubic root of 47827680 is about 362.9886995700.

The spelling of 47827680 in words is "forty-seven million, eight hundred twenty-seven thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 37 40 48 60 74 80 96 111 120 148 160 185 222 240 296 370 444 480 555 592 740 888 1110 1184 1480 1776 2220 2693 2960 3552 4440 5386 5920 8079 8880 10772 13465 16158 17760 21544 26930 32316 40395 43088 53860 64632 80790 86176 99641 107720 129264 161580 199282 215440 258528 298923 323160 398564 430880 498205 597846 646320 797128 996410 1195692 1292640 1494615 1594256 1992820 2391384 2989230 3188512 3985640 4782768 5978460 7971280 9565536 11956920 15942560 23913840 47827680