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48638436 = 22371152639
BaseRepresentation
bin1011100110001…
…0100111100100
310101112002101120
42321202213210
544422412221
64454253540
71130264010
oct271424744
9111462346
1048638436
1125500860
12143572b0
13a0cc752
146661540
15440b5c6
hex2e629e4

48638436 has 48 divisors (see below), whose sum is σ = 141496320. Its totient is φ = 12633120.

The previous prime is 48638389. The next prime is 48638437. The reversal of 48638436 is 63483684.

48638436 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 (42).

It is not an unprimeable number, because it can be changed into a prime (48638437) 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 15 ways as a sum of consecutive naturals, for example, 25396 + ... + 27243.

It is an arithmetic number, because the mean of its divisors is an integer number (2947840).

Almost surely, 248638436 is an apocalyptic number.

It is an amenable number.

48638436 is an abundant number, since it is smaller than the sum of its proper divisors (92857884).

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

48638436 is a wasteful number, since it uses less digits than its factorization.

48638436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52664 (or 52662 counting only the distinct ones).

The product of its digits is 331776, while the sum is 42.

The square root of 48638436 is about 6974.1261818238. The cubic root of 48638436 is about 365.0282983001.

The spelling of 48638436 in words is "forty-eight million, six hundred thirty-eight thousand, four hundred thirty-six".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 132 154 231 308 462 924 52639 105278 157917 210556 315834 368473 579029 631668 736946 1105419 1158058 1473892 1737087 2210838 2316116 3474174 4053203 4421676 6948348 8106406 12159609 16212812 24319218 48638436