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83419453 = 1319732573
BaseRepresentation
bin1001111100011…
…10000100111101
312210222010222101
410332032010331
5132323410303
612135545101
72032024255
oct476160475
9183863871
1083419453
11430a72a7
1223b2b191
1314389930
14b116965
1574cbd1d
hex4f8e13d

83419453 has 8 divisors (see below), whose sum is σ = 90295128. Its totient is φ = 76609344.

The previous prime is 83419439. The next prime is 83419463. The reversal of 83419453 is 35491438.

It can be written as a sum of positive squares in 4 ways, for example, as 2365444 + 81054009 = 1538^2 + 9003^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83419453 - 221 = 81322301 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 (83419463) 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, 13726 + ... + 18847.

It is an arithmetic number, because the mean of its divisors is an integer number (11286891).

Almost surely, 283419453 is an apocalyptic number.

It is an amenable number.

83419453 is a deficient number, since it is larger than the sum of its proper divisors (6875675).

83419453 is a wasteful number, since it uses less digits than its factorization.

83419453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32783.

The product of its digits is 51840, while the sum is 37.

The square root of 83419453 is about 9133.4250421186. The cubic root of 83419453 is about 436.9406454828.

The spelling of 83419453 in words is "eighty-three million, four hundred nineteen thousand, four hundred fifty-three".

Divisors: 1 13 197 2561 32573 423449 6416881 83419453