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83087237 = 3711511951
BaseRepresentation
bin1001111001111…
…00111110000101
312210100021021002
410330330332011
5132232242422
612124503045
72026141562
oct474747605
9183307232
1083087237
114299a742
12239aaa85
13142a165c
14b06b869
157463692
hex4f3cf85

83087237 has 8 divisors (see below), whose sum is σ = 85450752. Its totient is φ = 80730000.

The previous prime is 83087203. The next prime is 83087261. The reversal of 83087237 is 73278038.

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 83087237 - 212 = 83083141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83087237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83087267) 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, 41612 + ... + 43562.

It is an arithmetic number, because the mean of its divisors is an integer number (10681344).

Almost surely, 283087237 is an apocalyptic number.

It is an amenable number.

83087237 is a deficient number, since it is larger than the sum of its proper divisors (2363515).

83087237 is a wasteful number, since it uses less digits than its factorization.

83087237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 83087237 is about 9115.2200741397. The cubic root of 83087237 is about 436.3598385178.

The spelling of 83087237 in words is "eighty-three million, eighty-seven thousand, two hundred thirty-seven".

Divisors: 1 37 1151 1951 42587 72187 2245601 83087237