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250342540 = 22576732657
BaseRepresentation
bin11101110101111…
…10110010001100
3122110001201101221
432322332302030
51003041430130
640501413124
76126606430
oct1672766214
9573051357
10250342540
11119348068
126ba0a1a4
133cb325a6
14253689c0
1516ea087a
hexeebec8c

250342540 has 48 divisors (see below), whose sum is σ = 601941312. Its totient is φ = 85671936.

The previous prime is 250342523. The next prime is 250342541. The reversal of 250342540 is 45243052.

It is not an unprimeable number, because it can be changed into a prime (250342541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92892 + ... + 95548.

It is an arithmetic number, because the mean of its divisors is an integer number (12540444).

Almost surely, 2250342540 is an apocalyptic number.

250342540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250342540 is an abundant number, since it is smaller than the sum of its proper divisors (351598772).

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

250342540 is a wasteful number, since it uses less digits than its factorization.

250342540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346 (or 3344 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 250342540 is about 15822.2166588629. The cubic root of 250342540 is about 630.2481092129.

Adding to 250342540 its reverse (45243052), we get a palindrome (295585592).

The spelling of 250342540 in words is "two hundred fifty million, three hundred forty-two thousand, five hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 673 1346 2657 2692 3365 4711 5314 6730 9422 10628 13285 13460 18599 18844 23555 26570 37198 47110 53140 74396 92995 94220 185990 371980 1788161 3576322 7152644 8940805 12517127 17881610 25034254 35763220 50068508 62585635 125171270 250342540