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23057000 = 235323057
BaseRepresentation
bin101011111110…
…1001001101000
31121101102020222
41113331021220
521400311000
62142105212
7366660401
oct127751150
947342228
1023057000
111201907a
12787b208
134a139c5
1430c29a8
152056a85
hex15fd268

23057000 has 32 divisors (see below), whose sum is σ = 53955720. Its totient is φ = 9222400.

The previous prime is 23056991. The next prime is 23057009. The reversal of 23057000 is 75032.

It is an interprime number because it is at equal distance from previous prime (23056991) and next prime (23057009).

It can be written as a sum of positive squares in 4 ways, for example, as 13235044 + 9821956 = 3638^2 + 3134^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23057000.

It is not an unprimeable number, because it can be changed into a prime (23057009) 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, 10529 + ... + 12528.

Almost surely, 223057000 is an apocalyptic number.

23057000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23057000 is an abundant number, since it is smaller than the sum of its proper divisors (30898720).

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

23057000 is a wasteful number, since it uses less digits than its factorization.

23057000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23078 (or 23064 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 17.

The square root of 23057000 is about 4801.7705068027. The cubic root of 23057000 is about 284.6214323227.

The spelling of 23057000 in words is "twenty-three million, fifty-seven thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 23057 46114 92228 115285 184456 230570 461140 576425 922280 1152850 2305700 2882125 4611400 5764250 11528500 23057000