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48561438 = 23311311993
BaseRepresentation
bin1011100100111…
…1110100011110
310101101011202210
42321033310132
544412431223
64452501250
71126523352
oct271176436
9111334683
1048561438
1125458a22
121431a826
13a0a36a3
146641462
1543e3893
hex2e4fd1e

48561438 has 32 divisors (see below), whose sum is σ = 101071872. Its totient is φ = 15537600.

The previous prime is 48561433. The next prime is 48561467. The reversal of 48561438 is 83416584.

It is a junction number, because it is equal to n+sod(n) for n = 48561396 and 48561405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48561433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23370 + ... + 25362.

It is an arithmetic number, because the mean of its divisors is an integer number (3158496).

Almost surely, 248561438 is an apocalyptic number.

48561438 is an abundant number, since it is smaller than the sum of its proper divisors (52510434).

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

48561438 is a wasteful number, since it uses less digits than its factorization.

48561438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160.

The product of its digits is 92160, while the sum is 39.

The square root of 48561438 is about 6968.6037338910. The cubic root of 48561438 is about 364.8355749057.

The spelling of 48561438 in words is "forty-eight million, five hundred sixty-one thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 31 62 93 131 186 262 393 786 1993 3986 4061 5979 8122 11958 12183 24366 61783 123566 185349 261083 370698 522166 783249 1566498 8093573 16187146 24280719 48561438