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63938045 = 523896247
BaseRepresentation
bin1111001111100…
…1110111111101
311110022101111202
43303321313331
5112332004140
610202225245
71404315203
oct363716775
9143271452
1063938045
1133100666
12194b5225
1310328582
1486c5073
15592e915
hex3cf9dfd

63938045 has 16 divisors (see below), whose sum is σ = 80974080. Its totient is φ = 48369024.

The previous prime is 63938029. The next prime is 63938051. The reversal of 63938045 is 54083936.

It is a cyclic number.

It is not a de Polignac number, because 63938045 - 24 = 63938029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7112 + ... + 13358.

It is an arithmetic number, because the mean of its divisors is an integer number (5060880).

Almost surely, 263938045 is an apocalyptic number.

It is an amenable number.

63938045 is a deficient number, since it is larger than the sum of its proper divisors (17036035).

63938045 is a wasteful number, since it uses less digits than its factorization.

63938045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 63938045 is about 7996.1268749314. The cubic root of 63938045 is about 399.8708854114.

The spelling of 63938045 in words is "sixty-three million, nine hundred thirty-eight thousand, forty-five".

Divisors: 1 5 23 89 115 445 2047 6247 10235 31235 143681 555983 718405 2779915 12787609 63938045