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63245987 = 7371132161
BaseRepresentation
bin1111000101000…
…0111010100011
311102000020011222
43301100322203
5112142332422
610135325255
71365403430
oct361207243
9142006158
1063245987
1132778712
121922082b
131014557c
148584b87
155844842
hex3c50ea3

63245987 has 16 divisors (see below), whose sum is σ = 74926272. Its totient is φ = 52254720.

The previous prime is 63245971. The next prime is 63245989. The reversal of 63245987 is 78954236.

63245987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63245987 - 24 = 63245971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63245989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28187 + ... + 30347.

It is an arithmetic number, because the mean of its divisors is an integer number (4682892).

Almost surely, 263245987 is an apocalyptic number.

63245987 is a deficient number, since it is larger than the sum of its proper divisors (11680285).

63245987 is a wasteful number, since it uses less digits than its factorization.

63245987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318.

The product of its digits is 362880, while the sum is 44.

The square root of 63245987 is about 7952.7345611431. The cubic root of 63245987 is about 398.4229298796.

The spelling of 63245987 in words is "sixty-three million, two hundred forty-five thousand, nine hundred eighty-seven".

Divisors: 1 7 37 113 259 791 2161 4181 15127 29267 79957 244193 559699 1709351 9035141 63245987