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388328856 = 23316180369
BaseRepresentation
bin10111001001010…
…110110110011000
31000001201011001020
4113021112312120
51243403010411
6102311122440
712423512046
oct2711266630
91001634036
10388328856
1118a224243
12aa073420
13625b61b6
1439807396
152415a606
hex17256d98

388328856 has 16 divisors (see below), whose sum is σ = 970822200. Its totient is φ = 129442944.

The previous prime is 388328839. The next prime is 388328881. The reversal of 388328856 is 658823883.

It is a junction number, because it is equal to n+sod(n) for n = 388328799 and 388328808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8090161 + ... + 8090208.

Almost surely, 2388328856 is an apocalyptic number.

It is an amenable number.

388328856 is an abundant number, since it is smaller than the sum of its proper divisors (582493344).

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

388328856 is a wasteful number, since it uses less digits than its factorization.

388328856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16180378 (or 16180374 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 51.

The square root of 388328856 is about 19706.0614025228. The cubic root of 388328856 is about 729.5693062120.

The spelling of 388328856 in words is "three hundred eighty-eight million, three hundred twenty-eight thousand, eight hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 24 16180369 32360738 48541107 64721476 97082214 129442952 194164428 388328856