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81000801482 = 2192777695307
BaseRepresentation
bin100101101110000000…
…1100010010011001010
321202002002022001112112
41023130001202103022
52311342201121412
6101113344142322
75565163311116
oct1133401422312
9252062261475
1081000801482
1131396928047
12138470079a2
13783b592a43
143cc5a54746
1521912ac722
hex12dc0624ca

81000801482 has 16 divisors (see below), whose sum is σ = 128357737440. Its totient is φ = 38230280208.

The previous prime is 81000801403. The next prime is 81000801491. The reversal of 81000801482 is 28410800018.

It is a super-2 number, since 2×810008014822 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3837128 + ... + 3858179.

It is an arithmetic number, because the mean of its divisors is an integer number (8022358590).

Almost surely, 281000801482 is an apocalyptic number.

81000801482 is a deficient number, since it is larger than the sum of its proper divisors (47356935958).

81000801482 is a wasteful number, since it uses less digits than its factorization.

81000801482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7695605.

The product of its (nonzero) digits is 4096, while the sum is 32.

The spelling of 81000801482 in words is "eighty-one billion, eight hundred one thousand, four hundred eighty-two".

Divisors: 1 2 19 38 277 554 5263 10526 7695307 15390614 146210833 292421666 2131600039 4263200078 40500400741 81000801482