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67868250 = 2353175323
BaseRepresentation
bin1000000101110…
…01011001011010
311201201001201220
410002321121122
5114333241000
610422352510
71452604422
oct402713132
9151631656
1067868250
113534546a
121a88b736
13110a3438
149029482
155e591a0
hex40b965a

67868250 has 64 divisors (see below), whose sum is σ = 179397504. Its totient is φ = 17030400.

The previous prime is 67868237. The next prime is 67868287. The reversal of 67868250 is 5286876.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10089 + ... + 15411.

It is an arithmetic number, because the mean of its divisors is an integer number (2803086).

Almost surely, 267868250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67868250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89698752).

67868250 is an abundant number, since it is smaller than the sum of its proper divisors (111529254).

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

67868250 is a wasteful number, since it uses less digits than its factorization.

67868250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5360 (or 5350 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 67868250 is about 8238.2188608946. The cubic root of 67868250 is about 407.9017328701.

The spelling of 67868250 in words is "sixty-seven million, eight hundred sixty-eight thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 17 25 30 34 50 51 75 85 102 125 150 170 250 255 375 425 510 750 850 1275 2125 2550 4250 5323 6375 10646 12750 15969 26615 31938 53230 79845 90491 133075 159690 180982 266150 271473 399225 452455 542946 665375 798450 904910 1330750 1357365 1996125 2262275 2714730 3992250 4524550 6786825 11311375 13573650 22622750 33934125 67868250