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47699472 = 2431019839
BaseRepresentation
bin1011010111110…
…1011000010000
310022202101101010
42311331120100
544202340342
64422210520
71116303342
oct265753020
9108671333
1047699472
1124a1a357
1213b83a40
139b61252
146499292
1542c329c
hex2d7d610

47699472 has 40 divisors (see below), whose sum is σ = 124456320. Its totient is φ = 15740800.

The previous prime is 47699419. The next prime is 47699479. The reversal of 47699472 is 27499674.

47699472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (47699479) by changing a digit.

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, 72 + ... + 9767.

It is an arithmetic number, because the mean of its divisors is an integer number (3111408).

Almost surely, 247699472 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 47699472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62228160).

47699472 is an abundant number, since it is smaller than the sum of its proper divisors (76756848).

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

47699472 is a wasteful number, since it uses less digits than its factorization.

47699472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9951 (or 9945 counting only the distinct ones).

The product of its digits is 762048, while the sum is 48.

The square root of 47699472 is about 6906.4804350697. The cubic root of 47699472 is about 362.6640639831.

It can be divided in two parts, 4769 and 9472, that added together give a palindrome (14241).

The spelling of 47699472 in words is "forty-seven million, six hundred ninety-nine thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 101 202 303 404 606 808 1212 1616 2424 4848 9839 19678 29517 39356 59034 78712 118068 157424 236136 472272 993739 1987478 2981217 3974956 5962434 7949912 11924868 15899824 23849736 47699472