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83972255 = 529579119
BaseRepresentation
bin1010000000101…
…01000010011111
312212000020021112
411000111002133
5132444103010
612155452235
72036516033
oct500250237
9185006245
1083972255
1143444664
122415707b
1314521433
14b21c1c3
15758aa05
hex501509f

83972255 has 8 divisors (see below), whose sum is σ = 104241600. Its totient is φ = 64861216.

The previous prime is 83972243. The next prime is 83972257. The reversal of 83972255 is 55227938.

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 83972255 - 28 = 83971999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83972257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289415 + ... + 289704.

It is an arithmetic number, because the mean of its divisors is an integer number (13030200).

Almost surely, 283972255 is an apocalyptic number.

83972255 is a deficient number, since it is larger than the sum of its proper divisors (20269345).

83972255 is a wasteful number, since it uses less digits than its factorization.

83972255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579153.

The product of its digits is 151200, while the sum is 41.

The square root of 83972255 is about 9163.6376510641. The cubic root of 83972255 is about 437.9036905209.

The spelling of 83972255 in words is "eighty-three million, nine hundred seventy-two thousand, two hundred fifty-five".

Divisors: 1 5 29 145 579119 2895595 16794451 83972255