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71835064 = 23717611237
BaseRepresentation
bin1000100100000…
…01110110111000
312000011121011221
410102001312320
5121342210224
611043401424
71531405450
oct422016670
9160147157
1071835064
1137604824
1220083274
1311b61b72
14977cd60
15648e6e4
hex4481db8

71835064 has 64 divisors (see below), whose sum is σ = 165792960. Its totient is φ = 28477440.

The previous prime is 71835041. The next prime is 71835077. The reversal of 71835064 is 46053817.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57454 + ... + 58690.

It is an arithmetic number, because the mean of its divisors is an integer number (2590515).

Almost surely, 271835064 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 71835064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82896480).

71835064 is an abundant number, since it is smaller than the sum of its proper divisors (93957896).

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

71835064 is a wasteful number, since it uses less digits than its factorization.

71835064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 71835064 is about 8475.5568548621. The cubic root of 71835064 is about 415.6988544129.

The spelling of 71835064 in words is "seventy-one million, eight hundred thirty-five thousand, sixty-four".

Divisors: 1 2 4 7 8 14 17 28 34 56 61 68 119 122 136 238 244 427 476 488 854 952 1037 1237 1708 2074 2474 3416 4148 4948 7259 8296 8659 9896 14518 17318 21029 29036 34636 42058 58072 69272 75457 84116 147203 150914 168232 294406 301828 528199 588812 603656 1056398 1177624 1282769 2112796 2565538 4225592 5131076 8979383 10262152 17958766 35917532 71835064