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83430351 = 333090013
BaseRepresentation
bin1001111100100…
…00101111001111
312210222200221000
410332100233033
5132324232401
612140111343
72032101114
oct476205717
9183880830
1083430351
1143104504
1223b35553
1314391894
14b11a90b
1574d0186
hex4f90bcf

83430351 has 8 divisors (see below), whose sum is σ = 123600560. Its totient is φ = 55620216.

The previous prime is 83430337. The next prime is 83430383. The reversal of 83430351 is 15303438.

It is a happy number.

It is not a de Polignac number, because 83430351 - 26 = 83430287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3090013 = 83430351 / (8 + 3 + 4 + 3 + 0 + 3 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83440351) 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, 1544980 + ... + 1545033.

It is an arithmetic number, because the mean of its divisors is an integer number (15450070).

Almost surely, 283430351 is an apocalyptic number.

83430351 is a deficient number, since it is larger than the sum of its proper divisors (40170209).

83430351 is a wasteful number, since it uses less digits than its factorization.

83430351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090022 (or 3090016 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 83430351 is about 9134.0216224837. The cubic root of 83430351 is about 436.9596721072.

Adding to 83430351 its reverse (15303438), we get a palindrome (98733789).

The spelling of 83430351 in words is "eighty-three million, four hundred thirty thousand, three hundred fifty-one".

Divisors: 1 3 9 27 3090013 9270039 27810117 83430351