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67243104 = 25321491567
BaseRepresentation
bin1000000001000…
…00110001100000
311200112022012100
410000200301200
5114203234404
610401130400
71444362015
oct400406140
9150468170
1067243104
1134a58815
121a629a00
1310c14a26
148d0570c
155d83d39
hex4020c60

67243104 has 72 divisors (see below), whose sum is σ = 192628800. Its totient is φ = 22249728.

The previous prime is 67243103. The next prime is 67243117. The reversal of 67243104 is 40134276.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67243103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42129 + ... + 43695.

It is an arithmetic number, because the mean of its divisors is an integer number (2675400).

Almost surely, 267243104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67243104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96314400).

67243104 is an abundant number, since it is smaller than the sum of its proper divisors (125385696).

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

67243104 is a wasteful number, since it uses less digits than its factorization.

67243104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732 (or 1721 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 67243104 is about 8200.1892661084. The cubic root of 67243104 is about 406.6454502354.

The spelling of 67243104 in words is "sixty-seven million, two hundred forty-three thousand, one hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 149 288 298 447 596 894 1192 1341 1567 1788 2384 2682 3134 3576 4701 4768 5364 6268 7152 9402 10728 12536 14103 14304 18804 21456 25072 28206 37608 42912 50144 56412 75216 112824 150432 225648 233483 451296 466966 700449 933932 1400898 1867864 2101347 2801796 3735728 4202694 5603592 7471456 8405388 11207184 16810776 22414368 33621552 67243104