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250712742 = 23723259537
BaseRepresentation
bin11101111000110…
…01001010100110
3122110202112020010
432330121022212
51003140301432
640513351050
76133010640
oct1674311246
9573675203
10250712742
11119580215
126bb68486
133cc31c47
1425423890
15170253cc
hexef192a6

250712742 has 32 divisors (see below), whose sum is σ = 597975552. Its totient is φ = 68517504.

The previous prime is 250712729. The next prime is 250712783. The reversal of 250712742 is 247217052.

250712742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128803 + ... + 130734.

It is an arithmetic number, because the mean of its divisors is an integer number (18686736).

Almost surely, 2250712742 is an apocalyptic number.

250712742 is an abundant number, since it is smaller than the sum of its proper divisors (347262810).

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

250712742 is a wasteful number, since it uses less digits than its factorization.

250712742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259572.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 250712742 is about 15833.9111403342. The cubic root of 250712742 is about 630.5586226871.

Adding to 250712742 its reverse (247217052), we get a palindrome (497929794).

The spelling of 250712742 in words is "two hundred fifty million, seven hundred twelve thousand, seven hundred forty-two".

Divisors: 1 2 3 6 7 14 21 23 42 46 69 138 161 322 483 966 259537 519074 778611 1557222 1816759 3633518 5450277 5969351 10900554 11938702 17908053 35816106 41785457 83570914 125356371 250712742