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47134280 = 23529179227
BaseRepresentation
bin1011001111001…
…1011001001000
310021200200002002
42303303121020
544031244110
64402130132
71111430504
oct263633110
9107620062
1047134280
1124673756
1213950948
1399c3c0b
14638d304
154210aa5
hex2cf3648

47134280 has 64 divisors (see below), whose sum is σ = 110808000. Its totient is φ = 18022144.

The previous prime is 47134271. The next prime is 47134301. The reversal of 47134280 is 8243174.

47134280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×471342802 = 4443280702236800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

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 15 ways as a sum of consecutive naturals, for example, 207527 + ... + 207753.

It is an arithmetic number, because the mean of its divisors is an integer number (1731375).

Almost surely, 247134280 is an apocalyptic number.

47134280 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 47134280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55404000).

47134280 is an abundant number, since it is smaller than the sum of its proper divisors (63673720).

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

47134280 is a wasteful number, since it uses less digits than its factorization.

47134280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 47134280 is about 6865.4409909342. The cubic root of 47134280 is about 361.2259643256.

The spelling of 47134280 in words is "forty-seven million, one hundred thirty-four thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 179 227 232 290 358 454 580 716 895 908 1135 1160 1432 1790 1816 2270 3580 4540 5191 6583 7160 9080 10382 13166 20764 25955 26332 32915 40633 41528 51910 52664 65830 81266 103820 131660 162532 203165 207640 263320 325064 406330 812660 1178357 1625320 2356714 4713428 5891785 9426856 11783570 23567140 47134280