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49142508 = 2237157679
BaseRepresentation
bin1011101101110…
…1101011101100
310102110200211220
42323131223230
5100040030013
64513143340
71134463422
oct273355354
9112420756
1049142508
1125815548
121455ab50
13a24800c
146753112
1544aab23
hex2eddaec

49142508 has 24 divisors (see below), whose sum is σ = 116282880. Its totient is φ = 16149840.

The previous prime is 49142491. The next prime is 49142539. The reversal of 49142508 is 80524194.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27988 + ... + 29691.

It is an arithmetic number, because the mean of its divisors is an integer number (4845120).

Almost surely, 249142508 is an apocalyptic number.

It is an amenable number.

49142508 is an abundant number, since it is smaller than the sum of its proper divisors (67140372).

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

49142508 is a wasteful number, since it uses less digits than its factorization.

49142508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57757 (or 57755 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 49142508 is about 7010.1717525322. The cubic root of 49142508 is about 366.2849761780.

The spelling of 49142508 in words is "forty-nine million, one hundred forty-two thousand, five hundred eight".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 57679 115358 173037 230716 346074 692148 4095209 8190418 12285627 16380836 24571254 49142508