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49231788 = 2234102649
BaseRepresentation
bin1011101111001…
…1011110101100
310102122020022120
42323303132230
5100100404123
64515112540
71135314624
oct273633654
9112566276
1049231788
1125876631
12145a2750
13a279848
146777884
1544c72e3
hex2ef37ac

49231788 has 12 divisors (see below), whose sum is σ = 114874200. Its totient is φ = 16410592.

The previous prime is 49231771. The next prime is 49231789. The reversal of 49231788 is 88713294.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (49231789) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2051313 + ... + 2051336.

It is an arithmetic number, because the mean of its divisors is an integer number (9572850).

Almost surely, 249231788 is an apocalyptic number.

It is an amenable number.

49231788 is an abundant number, since it is smaller than the sum of its proper divisors (65642412).

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

49231788 is a wasteful number, since it uses less digits than its factorization.

49231788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102656 (or 4102654 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 49231788 is about 7016.5367525582. The cubic root of 49231788 is about 366.5066589272.

The spelling of 49231788 in words is "forty-nine million, two hundred thirty-one thousand, seven hundred eighty-eight".

Divisors: 1 2 3 4 6 12 4102649 8205298 12307947 16410596 24615894 49231788