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2057578614 = 23271353137173
BaseRepresentation
bin111101010100100…
…0010100001110110
312022101200211020100
41322221002201312
513203220003424
6540101014530
7101663062320
oct17251024166
95271624210
102057578614
119664a42a3
124950b4446
1326a387150
141573a6610
15c0987dc9
hex7aa42876

2057578614 has 192 divisors, whose sum is σ = 5663758464. Its totient is φ = 525477888.

The previous prime is 2057578577. The next prime is 2057578637. The reversal of 2057578614 is 4168757502.

2057578614 is a `hidden beast` number, since 2 + 0 + 575 + 78 + 6 + 1 + 4 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2057578614.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11893432 + ... + 11893604.

It is an arithmetic number, because the mean of its divisors is an integer number (29498742).

Almost surely, 22057578614 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2057578614, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2831879232).

2057578614 is an abundant number, since it is smaller than the sum of its proper divisors (3606179850).

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

2057578614 is a wasteful number, since it uses less digits than its factorization.

2057578614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 2057578614 is about 45360.5402745602. The cubic root of 2057578614 is about 1271.8975939570.

The spelling of 2057578614 in words is "two billion, fifty-seven million, five hundred seventy-eight thousand, six hundred fourteen".