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71056832 = 2671114419
BaseRepresentation
bin1000011110000…
…11110111000000
311221201001122112
410033003313000
5121142304312
611014554452
71521654530
oct417036700
9157631575
1071056832
1137123060
121b968a28
131194b882
1496194c0
156388d22
hex43c3dc0

71056832 has 56 divisors (see below), whose sum is σ = 175808640. Its totient is φ = 27682560.

The previous prime is 71056823. The next prime is 71056837. The reversal of 71056832 is 23865017.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71056837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2282 + ... + 12137.

It is an arithmetic number, because the mean of its divisors is an integer number (3139440).

Almost surely, 271056832 is an apocalyptic number.

It is an amenable number.

71056832 is an abundant number, since it is smaller than the sum of its proper divisors (104751808).

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

71056832 is a wasteful number, since it uses less digits than its factorization.

71056832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14449 (or 14439 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 71056832 is about 8429.5214573545. The cubic root of 71056832 is about 414.1922294925.

The spelling of 71056832 in words is "seventy-one million, fifty-six thousand, eight hundred thirty-two".

Divisors: 1 2 4 7 8 11 14 16 22 28 32 44 56 64 77 88 112 154 176 224 308 352 448 616 704 1232 2464 4928 14419 28838 57676 100933 115352 158609 201866 230704 317218 403732 461408 634436 807464 922816 1110263 1268872 1614928 2220526 2537744 3229856 4441052 5075488 6459712 8882104 10150976 17764208 35528416 71056832