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387788052 = 2233110212
BaseRepresentation
bin10111000111010…
…010110100010100
31000000200200012110
4113013102310110
51243233204202
6102251351020
712416100261
oct2707226424
91000620173
10387788052
111899949a3
12a9a52470
1362456cb2
1439706268
15240a026c
hex171d2d14

387788052 has 36 divisors (see below), whose sum is σ = 934942848. Its totient is φ = 124970400.

The previous prime is 387788017. The next prime is 387788053. The reversal of 387788052 is 250887783.

It is a junction number, because it is equal to n+sod(n) for n = 387787992 and 387788010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387788053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379302 + ... + 380322.

Almost surely, 2387788052 is an apocalyptic number.

It is an amenable number.

387788052 is an abundant number, since it is smaller than the sum of its proper divisors (547154796).

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

387788052 is a wasteful number, since it uses less digits than its factorization.

387788052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The square root of 387788052 is about 19692.3348539476. The cubic root of 387788052 is about 729.2304720061.

The spelling of 387788052 in words is "three hundred eighty-seven million, seven hundred eighty-eight thousand, fifty-two".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 1021 2042 3063 4084 6126 12252 31651 63302 94953 126604 189906 379812 1042441 2084882 3127323 4169764 6254646 12509292 32315671 64631342 96947013 129262684 193894026 387788052