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1656000056 = 231721674289
BaseRepresentation
bin110001010110100…
…1000111000111000
311021102001112000102
41202231020320320
511342414000211
6432153454532
756015524334
oct14255107070
94242045012
101656000056
1177a850397
123a2711448
132051121b9
14119d107c4
159a5b1a3b
hex62b48e38

1656000056 has 48 divisors (see below), whose sum is σ = 3318915600. Its totient is φ = 774447104.

The previous prime is 1656000041. The next prime is 1656000091. The reversal of 1656000056 is 6500006561.

It is a junction number, because it is equal to n+sod(n) for n = 1655999992 and 1656000028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 383960 + ... + 388248.

It is an arithmetic number, because the mean of its divisors is an integer number (69144075).

Almost surely, 21656000056 is an apocalyptic number.

It is an amenable number.

1656000056 is an abundant number, since it is smaller than the sum of its proper divisors (1662915544).

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

1656000056 is a wasteful number, since it uses less digits than its factorization.

1656000056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496 (or 4475 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 1656000056 is about 40693.9805868141. The cubic root of 1656000056 is about 1183.0963532762.

The spelling of 1656000056 in words is "one billion, six hundred fifty-six million, fifty-six", and thus it is an aban number.

Divisors: 1 2 4 8 17 34 68 136 167 289 334 578 668 1156 1336 2312 2839 4289 5678 8578 11356 17156 22712 34312 48263 72913 96526 145826 193052 291652 386104 583304 716263 1239521 1432526 2479042 2865052 4958084 5730104 9916168 12176471 24352942 48705884 97411768 207000007 414000014 828000028 1656000056