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49488142 = 21110721023
BaseRepresentation
bin1011110011001…
…0000100001110
310110010020222011
42330302010032
5100132110032
64524411434
71140433204
oct274620416
9113106864
1049488142
1125a311a0
12146a6b7a
13a339432
146803074
154528247
hex2f3210e

49488142 has 16 divisors (see below), whose sum is σ = 81741312. Its totient is φ = 22283320.

The previous prime is 49488137. The next prime is 49488149. The reversal of 49488142 is 24188494.

It is a happy number.

It is a super-2 number, since 2×494881422 = 4898152397224328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49488095 and 49488104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49488149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8158 + ... + 12865.

It is an arithmetic number, because the mean of its divisors is an integer number (5108832).

Almost surely, 249488142 is an apocalyptic number.

49488142 is a deficient number, since it is larger than the sum of its proper divisors (32253170).

49488142 is a wasteful number, since it uses less digits than its factorization.

49488142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21143.

The product of its digits is 73728, while the sum is 40.

The square root of 49488142 is about 7034.7808778952. The cubic root of 49488142 is about 367.1417014748.

The spelling of 49488142 in words is "forty-nine million, four hundred eighty-eight thousand, one hundred forty-two".

Divisors: 1 2 11 22 107 214 1177 2354 21023 42046 231253 462506 2249461 4498922 24744071 49488142