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47228088 = 23353107347
BaseRepresentation
bin1011010000101…
…0010010111000
310021212102202110
42310022102320
544042244323
64404132320
71112301135
oct264122270
9107772673
1047228088
1124728186
12139970a0
139a2781b
1463b558c
15422d793
hex2d0a4b8

47228088 has 64 divisors (see below), whose sum is σ = 121772160. Its totient is φ = 15257216.

The previous prime is 47228063. The next prime is 47228089. The reversal of 47228088 is 88082274.

It is a super-2 number, since 2×472280882 = 4460984592271488, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47228089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135931 + ... + 136277.

It is an arithmetic number, because the mean of its divisors is an integer number (1902690).

Almost surely, 247228088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47228088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60886080).

47228088 is an abundant number, since it is smaller than the sum of its proper divisors (74544072).

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

47228088 is a wasteful number, since it uses less digits than its factorization.

47228088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 47228088 is about 6872.2694941337. The cubic root of 47228088 is about 361.4654462897.

The spelling of 47228088 in words is "forty-seven million, two hundred twenty-eight thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 53 106 107 159 212 214 318 321 347 424 428 636 642 694 856 1041 1272 1284 1388 2082 2568 2776 4164 5671 8328 11342 17013 18391 22684 34026 36782 37129 45368 55173 68052 73564 74258 110346 111387 136104 147128 148516 220692 222774 297032 441384 445548 891096 1967837 3935674 5903511 7871348 11807022 15742696 23614044 47228088