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2057887326 = 2311231355657
BaseRepresentation
bin111101010101000…
…1101111001011110
312022102021111201010
41322222031321132
513203304343301
6540111400050
7101665516335
oct17252157136
95272244633
102057887326
11966695230
12495223026
1326a464811
14157446d1c
15c09e95d6
hex7aa8de5e

2057887326 has 32 divisors (see below), whose sum is σ = 4685154048. Its totient is φ = 596488640.

The previous prime is 2057887319. The next prime is 2057887361. The reversal of 2057887326 is 6237887502.

It is a super-2 number, since 2×20578873262 = 8469800493022860552, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676311 + ... + 679346.

It is an arithmetic number, because the mean of its divisors is an integer number (146411064).

Almost surely, 22057887326 is an apocalyptic number.

2057887326 is an abundant number, since it is smaller than the sum of its proper divisors (2627266722).

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

2057887326 is a wasteful number, since it uses less digits than its factorization.

2057887326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355696.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 2057887326 is about 45363.9430164531. The cubic root of 2057887326 is about 1271.9612011523.

The spelling of 2057887326 in words is "two billion, fifty-seven million, eight hundred eighty-seven thousand, three hundred twenty-six".

Divisors: 1 2 3 6 11 22 23 33 46 66 69 138 253 506 759 1518 1355657 2711314 4066971 8133942 14912227 29824454 31180111 44736681 62360222 89473362 93540333 187080666 342981221 685962442 1028943663 2057887326