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49620987 = 32133113681
BaseRepresentation
bin1011110101001…
…0011111111011
310110101000012100
42331102133323
5100200332422
64531314443
71141525413
oct275223773
9113330170
1049620987
1126011a89
121474ba23
13a384a40
146839643
1545527ac
hex2f527fb

49620987 has 24 divisors (see below), whose sum is σ = 79683968. Its totient is φ = 29548800.

The previous prime is 49620973. The next prime is 49621003. The reversal of 49620987 is 78902694.

It is a happy number.

It is not a de Polignac number, because 49620987 - 27 = 49620859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49620187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3214 + ... + 10467.

Almost surely, 249620987 is an apocalyptic number.

49620987 is a deficient number, since it is larger than the sum of its proper divisors (30062981).

49620987 is a wasteful number, since it uses less digits than its factorization.

49620987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13731 (or 13728 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 49620987 is about 7044.2165639622. The cubic root of 49620987 is about 367.4699239582.

The spelling of 49620987 in words is "forty-nine million, six hundred twenty thousand, nine hundred eighty-seven".

Divisors: 1 3 9 13 31 39 93 117 279 403 1209 3627 13681 41043 123129 177853 424111 533559 1272333 1600677 3816999 5513443 16540329 49620987