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83132291 = 1170110781
BaseRepresentation
bin1001111010001…
…11111110000011
312210102120001202
410331013332003
5132240213131
612125451415
72026420124
oct475077603
9183376052
1083132291
1142a20580
1223a10b6b
13142b9008
14b08004b
157471bcb
hex4f47f83

83132291 has 8 divisors (see below), whose sum is σ = 90827568. Its totient is φ = 75460000.

The previous prime is 83132279. The next prime is 83132311. The reversal of 83132291 is 19223138.

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

It is a de Polignac number, because none of the positive numbers 2k-83132291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83132221) 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, 2321 + ... + 13101.

It is an arithmetic number, because the mean of its divisors is an integer number (11353446).

Almost surely, 283132291 is an apocalyptic number.

83132291 is a deficient number, since it is larger than the sum of its proper divisors (7695277).

83132291 is a wasteful number, since it uses less digits than its factorization.

83132291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11493.

The product of its digits is 2592, while the sum is 29.

The square root of 83132291 is about 9117.6911002731. The cubic root of 83132291 is about 436.4386962118.

The spelling of 83132291 in words is "eighty-three million, one hundred thirty-two thousand, two hundred ninety-one".

Divisors: 1 11 701 7711 10781 118591 7557481 83132291