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47113472 = 28761431
BaseRepresentation
bin1011001110111…
…0010100000000
310021122121112102
42303232110000
544030112342
64401445532
71111313030
oct263562400
9107577472
1047113472
112465a05a
12139408a8
1399b75c3
1463858c0
154209832
hex2cee500

47113472 has 72 divisors (see below), whose sum is σ = 109492992. Its totient is φ = 19814400.

The previous prime is 47113471. The next prime is 47113489. The reversal of 47113472 is 27431174.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47113471) 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 7 ways as a sum of consecutive naturals, for example, 109097 + ... + 109527.

It is an arithmetic number, because the mean of its divisors is an integer number (1520736).

Almost surely, 247113472 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 47113472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54746496).

47113472 is an abundant number, since it is smaller than the sum of its proper divisors (62379520).

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

47113472 is an equidigital number, since it uses as much as digits as its factorization.

47113472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 501 counting only the distinct ones).

The product of its digits is 4704, while the sum is 29.

The square root of 47113472 is about 6863.9254075201. The cubic root of 47113472 is about 361.1728006394.

The spelling of 47113472 in words is "forty-seven million, one hundred thirteen thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 61 64 112 122 128 224 244 256 427 431 448 488 854 862 896 976 1708 1724 1792 1952 3017 3416 3448 3904 6034 6832 6896 7808 12068 13664 13792 15616 24136 26291 27328 27584 48272 52582 54656 55168 96544 105164 109312 110336 184037 193088 210328 368074 386176 420656 736148 772352 841312 1472296 1682624 2944592 3365248 5889184 6730496 11778368 23556736 47113472