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83134949 = 237514813
BaseRepresentation
bin1001111010010…
…00100111100101
312210102200201012
410331020213211
5132240304244
612125512005
72026430642
oct475104745
9183380635
1083134949
1142a22577
1223a12605
13142ba2a1
14b080dc9
15747289e
hex4f489e5

83134949 has 8 divisors (see below), whose sum is σ = 86883072. Its totient is φ = 79398000.

The previous prime is 83134889. The next prime is 83134951. The reversal of 83134949 is 94943138.

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 83134949 - 220 = 82086373 is a prime.

It is a super-2 number, since 2×831349492 = 13822839490465202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83134979) 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, 14867 + ... + 19679.

It is an arithmetic number, because the mean of its divisors is an integer number (10860384).

Almost surely, 283134949 is an apocalyptic number.

It is an amenable number.

83134949 is a deficient number, since it is larger than the sum of its proper divisors (3748123).

83134949 is a wasteful number, since it uses less digits than its factorization.

83134949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587.

The product of its digits is 93312, while the sum is 41.

The square root of 83134949 is about 9117.8368596943. The cubic root of 83134949 is about 436.4433476001.

The spelling of 83134949 in words is "eighty-three million, one hundred thirty-four thousand, nine hundred forty-nine".

Divisors: 1 23 751 4813 17273 110699 3614563 83134949