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71350400 = 2752112027
BaseRepresentation
bin1000100000010…
…11100010000000
311222020222100102
410100023202000
5121231203100
611025141532
71524316442
oct420134200
9158228312
1071350400
1137303680
121ba8a8a8
1311a22394
149694492
1563e5cd5
hex440b880

71350400 has 96 divisors (see below), whose sum is σ = 192376080. Its totient is φ = 25932800.

The previous prime is 71350379. The next prime is 71350417. The reversal of 71350400 is 405317.

It is a happy number.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34187 + ... + 36213.

Almost surely, 271350400 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 71350400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96188040).

71350400 is an abundant number, since it is smaller than the sum of its proper divisors (121025680).

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

71350400 is a wasteful number, since it uses less digits than its factorization.

71350400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 71350400 is about 8446.9165971969. The cubic root of 71350400 is about 414.7618510736.

Adding to 71350400 its reverse (405317), we get a palindrome (71755717).

The spelling of 71350400 in words is "seventy-one million, three hundred fifty thousand, four hundred".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 64 80 88 100 110 128 160 176 200 220 275 320 352 400 440 550 640 704 800 880 1100 1408 1600 1760 2027 2200 3200 3520 4054 4400 7040 8108 8800 10135 16216 17600 20270 22297 32432 35200 40540 44594 50675 64864 81080 89188 101350 111485 129728 162160 178376 202700 222970 259456 324320 356752 405400 445940 557425 648640 713504 810800 891880 1114850 1297280 1427008 1621600 1783760 2229700 2854016 3243200 3567520 4459400 6486400 7135040 8918800 14270080 17837600 35675200 71350400