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628088 = 2378511
BaseRepresentation
bin10011001010101111000
31011220120112
42121111320
5130044323
621243452
75224106
oct2312570
91156515
10628088
1139998a
12263588
1318cb66
14124c76
15c6178
hex99578

628088 has 8 divisors (see below), whose sum is σ = 1177680. Its totient is φ = 314040.

The previous prime is 628063. The next prime is 628093. The reversal of 628088 is 880826.

628088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×6280883 = 743331851899132416, which contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 628088.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39248 + ... + 39263.

It is an arithmetic number, because the mean of its divisors is an integer number (147210).

2628088 is an apocalyptic number.

It is an amenable number.

628088 is a deficient number, since it is larger than the sum of its proper divisors (549592).

628088 is a wasteful number, since it uses less digits than its factorization.

628088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78517 (or 78513 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 628088 is about 792.5200312926. The cubic root of 628088 is about 85.6393768816.

The spelling of 628088 in words is "six hundred twenty-eight thousand, eighty-eight".

Divisors: 1 2 4 8 78511 157022 314044 628088