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68259550 = 2521519041
BaseRepresentation
bin1000001000110…
…00111011011110
311202102221111111
410010120323132
5114433301200
610435012234
71456124302
oct404307336
9152387444
1068259550
1135592457
121aa3a07a
13111ac588
1490cbd02
155ed50ba
hex4118ede

68259550 has 24 divisors (see below), whose sum is σ = 127817712. Its totient is φ = 27120000.

The previous prime is 68259517. The next prime is 68259559. The reversal of 68259550 is 5595286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68259559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3030 + ... + 12070.

It is an arithmetic number, because the mean of its divisors is an integer number (5325738).

Almost surely, 268259550 is an apocalyptic number.

68259550 is a deficient number, since it is larger than the sum of its proper divisors (59558162).

68259550 is a wasteful number, since it uses less digits than its factorization.

68259550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9204 (or 9199 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 68259550 is about 8261.9337930051. The cubic root of 68259550 is about 408.6841614476.

The spelling of 68259550 in words is "sixty-eight million, two hundred fifty-nine thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 151 302 755 1510 3775 7550 9041 18082 45205 90410 226025 452050 1365191 2730382 6825955 13651910 34129775 68259550