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2057529570 = 2351922316187
BaseRepresentation
bin111101010100011…
…0110100011100010
312022101121022221220
41322220312203202
513203211421240
6540055555510
7101662466325
oct17250664342
95271538856
102057529570
11966470468
1249508bb96
1326a36aa25
141573927bc
15c09785d0
hex7aa368e2

2057529570 has 64 divisors (see below), whose sum is σ = 5221601280. Its totient is φ = 517434048.

The previous prime is 2057529541. The next prime is 2057529571. The reversal of 2057529570 is 759257502.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2057529571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119017 + ... + 135203.

It is an arithmetic number, because the mean of its divisors is an integer number (81587520).

Almost surely, 22057529570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2057529570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2610800640).

2057529570 is an abundant number, since it is smaller than the sum of its proper divisors (3164071710).

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

2057529570 is a wasteful number, since it uses less digits than its factorization.

2057529570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16439.

The product of its (nonzero) digits is 220500, while the sum is 42.

The square root of 2057529570 is about 45359.9996693122. Note that the first 3 decimals coincide. The cubic root of 2057529570 is about 1271.8874883178.

The spelling of 2057529570 in words is "two billion, fifty-seven million, five hundred twenty-nine thousand, five hundred seventy".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 223 285 446 570 669 1115 1338 2230 3345 4237 6690 8474 12711 16187 21185 25422 32374 42370 48561 63555 80935 97122 127110 161870 242805 307553 485610 615106 922659 1537765 1845318 3075530 3609701 4613295 7219402 9226590 10829103 18048505 21658206 36097010 54145515 68584319 108291030 137168638 205752957 342921595 411505914 685843190 1028764785 2057529570