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71943368 = 2372223823
BaseRepresentation
bin1000100100111…
…00010011001000
312000101002202012
410102130103020
5121404141433
611045555052
71532336300
oct422342310
9160332665
1071943368
1137679132
1220115a88
1311b9c253
1497aa600
1564b1848
hex449c4c8

71943368 has 48 divisors (see below), whose sum is σ = 157812480. Its totient is φ = 30657312.

The previous prime is 71943359. The next prime is 71943373. The reversal of 71943368 is 86334917.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87005 + ... + 87827.

It is an arithmetic number, because the mean of its divisors is an integer number (3287760).

Almost surely, 271943368 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 71943368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78906240).

71943368 is an abundant number, since it is smaller than the sum of its proper divisors (85869112).

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

71943368 is a wasteful number, since it uses less digits than its factorization.

71943368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1055 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 71943368 is about 8481.9436451794. The cubic root of 71943368 is about 415.9076625680.

The spelling of 71943368 in words is "seventy-one million, nine hundred forty-three thousand, three hundred sixty-eight".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 223 392 446 823 892 1561 1646 1784 3122 3292 5761 6244 6584 10927 11522 12488 21854 23044 40327 43708 46088 80654 87416 161308 183529 322616 367058 734116 1284703 1468232 2569406 5138812 8992921 10277624 17985842 35971684 71943368