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83223775 = 5223144737
BaseRepresentation
bin1001111010111…
…10010011011111
312210121012120001
410331132103133
5132301130100
612131435131
72030250625
oct475362337
9183535501
1083223775
1142a83288
1223a55aa7
131431b84b
14b0a5515
15748dd6a
hex4f5e4df

83223775 has 12 divisors (see below), whose sum is σ = 107685072. Its totient is φ = 63683840.

The previous prime is 83223773. The next prime is 83223799. The reversal of 83223775 is 57732238.

It is not a de Polignac number, because 83223775 - 21 = 83223773 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 (83223773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71794 + ... + 72943.

It is an arithmetic number, because the mean of its divisors is an integer number (8973756).

Almost surely, 283223775 is an apocalyptic number.

83223775 is a deficient number, since it is larger than the sum of its proper divisors (24461297).

83223775 is a wasteful number, since it uses less digits than its factorization.

83223775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144770 (or 144765 counting only the distinct ones).

The product of its digits is 70560, while the sum is 37.

The square root of 83223775 is about 9122.7065611035. The cubic root of 83223775 is about 436.5987323824.

The spelling of 83223775 in words is "eighty-three million, two hundred twenty-three thousand, seven hundred seventy-five".

Divisors: 1 5 23 25 115 575 144737 723685 3328951 3618425 16644755 83223775