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68218414 = 21123314349
BaseRepresentation
bin1000001000011…
…10111000101110
311202100212001221
410010032320232
5114430442124
610434053554
71455563335
oct404167056
9152325057
1068218414
1135564560
121aa1a2ba
1311196934
1490bad1c
155ec7ce4
hex410ee2e

68218414 has 32 divisors (see below), whose sum is σ = 120268800. Its totient is φ = 28696800.

The previous prime is 68218387. The next prime is 68218421. The reversal of 68218414 is 41481286.

It is a self number, because there is not a number n which added to its sum of digits gives 68218414.

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, 13512 + ... + 17860.

It is an arithmetic number, because the mean of its divisors is an integer number (3758400).

Almost surely, 268218414 is an apocalyptic number.

68218414 is a deficient number, since it is larger than the sum of its proper divisors (52050386).

68218414 is a wasteful number, since it uses less digits than its factorization.

68218414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4416.

The product of its digits is 12288, while the sum is 34.

The square root of 68218414 is about 8259.4439280136. The cubic root of 68218414 is about 408.6020483469.

The spelling of 68218414 in words is "sixty-eight million, two hundred eighteen thousand, four hundred fourteen".

Divisors: 1 2 11 22 23 31 46 62 253 341 506 682 713 1426 4349 7843 8698 15686 47839 95678 100027 134819 200054 269638 1100297 1483009 2200594 2966018 3100837 6201674 34109207 68218414