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245067390 = 2335907657
BaseRepresentation
bin11101001101101…
…10111001111110
3122002010201021000
432212312321332
51000214124030
640152351130
76034016121
oct1646667176
9562121230
10245067390
11116374837
126a0a54a6
133ba064b9
14247943b8
15167ac860
hexe9b6e7e

245067390 has 32 divisors (see below), whose sum is σ = 653513760. Its totient is φ = 65351232.

The previous prime is 245067379. The next prime is 245067397. The reversal of 245067390 is 93760542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245067397) by changing a digit.

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, 453559 + ... + 454098.

It is an arithmetic number, because the mean of its divisors is an integer number (20422305).

Almost surely, 2245067390 is an apocalyptic number.

245067390 is an abundant number, since it is smaller than the sum of its proper divisors (408446370).

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

245067390 is a wasteful number, since it uses less digits than its factorization.

245067390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907673 (or 907667 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 245067390 is about 15654.6283890739. The cubic root of 245067390 is about 625.7898408884.

The spelling of 245067390 in words is "two hundred forty-five million, sixty-seven thousand, three hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 907657 1815314 2722971 4538285 5445942 8168913 9076570 13614855 16337826 24506739 27229710 40844565 49013478 81689130 122533695 245067390