Search a number
-
+
47703680 = 275193923
BaseRepresentation
bin1011010111111…
…0011010000000
310022202121010222
42311332122000
544203004210
64422242212
71116321533
oct265763200
9108677128
1047703680
1124a22532
1213b86368
139b6313b
14649aa1a
1542c4655
hex2d7e680

47703680 has 64 divisors (see below), whose sum is σ = 120074400. Its totient is φ = 18072576.

The previous prime is 47703673. The next prime is 47703697. The reversal of 47703680 is 8630774.

47703680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 47703680.

It is an unprimeable number.

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, 10199 + ... + 14121.

Almost surely, 247703680 is an apocalyptic number.

47703680 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 47703680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60037200).

47703680 is an abundant number, since it is smaller than the sum of its proper divisors (72370720).

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

47703680 is a wasteful number, since it uses less digits than its factorization.

47703680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961 (or 3949 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 47703680 is about 6906.7850697702. The cubic root of 47703680 is about 362.6747282906.

The spelling of 47703680 in words is "forty-seven million, seven hundred three thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 128 152 160 190 304 320 380 608 640 760 1216 1520 2432 3040 3923 6080 7846 12160 15692 19615 31384 39230 62768 74537 78460 125536 149074 156920 251072 298148 313840 372685 502144 596296 627680 745370 1192592 1255360 1490740 2385184 2510720 2981480 4770368 5962960 9540736 11925920 23851840 47703680