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56128000398 = 2331301763443
BaseRepresentation
bin110100010001011111…
…010101000110001110
312100212122201211211120
4310101133111012032
51404422232003043
641441305501410
74024622063061
oct642137250616
9170778654746
1056128000398
112189287a498
12aa651a1866
1353a6504072
142a0653c8d8
1516d7863983
hexd117d518e

56128000398 has 16 divisors (see below), whose sum is σ = 115877162496. Its totient is φ = 18105806520.

The previous prime is 56128000391. The next prime is 56128000417. The reversal of 56128000398 is 89300082165.

56128000398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56128000391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150881536 + ... + 150881907.

It is an arithmetic number, because the mean of its divisors is an integer number (7242322656).

Almost surely, 256128000398 is an apocalyptic number.

56128000398 is an abundant number, since it is smaller than the sum of its proper divisors (59749162098).

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

56128000398 is a wasteful number, since it uses less digits than its factorization.

56128000398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301763479.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 56128000398 in words is "fifty-six billion, one hundred twenty-eight million, three hundred ninety-eight", and thus it is an aban number.

Divisors: 1 2 3 6 31 62 93 186 301763443 603526886 905290329 1810580658 9354666733 18709333466 28064000199 56128000398