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67313750 = 25473157
BaseRepresentation
bin1000000001100…
…10000001010110
311200122220002212
410000302001112
5114213020000
610402433422
71445105000
oct400620126
9150586085
1067313750
1134aa68a9
121a662872
1310c3ac2a
148d23370
155d99c35
hex4032056

67313750 has 80 divisors (see below), whose sum is σ = 148077600. Its totient is φ = 22932000.

The previous prime is 67313731. The next prime is 67313783. The reversal of 67313750 is 5731376.

It is a super-2 number, since 2×673137502 = 9062281878125000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 428672 + ... + 428828.

It is an arithmetic number, because the mean of its divisors is an integer number (1850970).

Almost surely, 267313750 is an apocalyptic number.

67313750 is an abundant number, since it is smaller than the sum of its proper divisors (80763850).

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

67313750 is an equidigital number, since it uses as much as digits as its factorization.

67313750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 32.

The square root of 67313750 is about 8204.4957188117. The cubic root of 67313750 is about 406.7878084257.

The spelling of 67313750 in words is "sixty-seven million, three hundred thirteen thousand, seven hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 125 157 175 245 250 314 343 350 490 625 686 785 875 1099 1225 1250 1570 1715 1750 2198 2450 3430 3925 4375 5495 6125 7693 7850 8575 8750 10990 12250 15386 17150 19625 27475 30625 38465 39250 42875 53851 54950 61250 76930 85750 98125 107702 137375 192325 196250 214375 269255 274750 384650 428750 538510 686875 961625 1346275 1373750 1923250 2692550 4808125 6731375 9616250 13462750 33656875 67313750