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81483101 = 747534673
BaseRepresentation
bin1001101101101…
…01010101011101
312200022202210122
410312311111131
5131324424401
612030244325
72006411030
oct466652535
9180282718
1081483101
1141aa4507
12233566a5
1313b5c46b
14ab71017
15724821b
hex4db555d

81483101 has 16 divisors (see below), whose sum is σ = 96920064. Its totient is φ = 67052544.

The previous prime is 81483053. The next prime is 81483107. The reversal of 81483101 is 10138418.

It is a cyclic number.

It is not a de Polignac number, because 81483101 - 26 = 81483037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81483107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15101 + ... + 19773.

It is an arithmetic number, because the mean of its divisors is an integer number (6057504).

Almost surely, 281483101 is an apocalyptic number.

It is an amenable number.

81483101 is a deficient number, since it is larger than the sum of its proper divisors (15436963).

81483101 is a wasteful number, since it uses less digits than its factorization.

81483101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 81483101 is about 9026.7990450658. The cubic root of 81483101 is about 433.5333545356.

The spelling of 81483101 in words is "eighty-one million, four hundred eighty-three thousand, one hundred one".

Divisors: 1 7 47 53 329 371 2491 4673 17437 32711 219631 247669 1537417 1733683 11640443 81483101