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47342780 = 2255359757
BaseRepresentation
bin1011010010011…
…0010010111100
310022002021002022
42310212102330
544104432110
64410415312
71113256412
oct264462274
9108067068
1047342780
11247a6371
1213a31538
139a67aa4
1464052b2
154252755
hex2d264bc

47342780 has 48 divisors (see below), whose sum is σ = 103148640. Its totient is φ = 18240768.

The previous prime is 47342767. The next prime is 47342791. The reversal of 47342780 is 8724374.

47342780 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-3 number, since 3×473427803 (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47342780.

It is a congruent number.

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, 62162 + ... + 62918.

It is an arithmetic number, because the mean of its divisors is an integer number (2148930).

Almost surely, 247342780 is an apocalyptic number.

It is an amenable number.

47342780 is an abundant number, since it is smaller than the sum of its proper divisors (55805860).

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

47342780 is a wasteful number, since it uses less digits than its factorization.

47342780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 47342780 is about 6880.6089846757. The cubic root of 47342780 is about 361.7578124270.

The spelling of 47342780 in words is "forty-seven million, three hundred forty-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 53 59 106 118 212 236 265 295 530 590 757 1060 1180 1514 3028 3127 3785 6254 7570 12508 15140 15635 31270 40121 44663 62540 80242 89326 160484 178652 200605 223315 401210 446630 802420 893260 2367139 4734278 9468556 11835695 23671390 47342780