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83122138 = 21123612693
BaseRepresentation
bin1001111010001…
…01011111011010
312210102001010201
410331011133122
5132234402023
612125332414
72026345411
oct475053732
9183361121
1083122138
1142a13990
1223a0710a
13142b44c8
14b07a478
15746dbad
hex4f457da

83122138 has 32 divisors (see below), whose sum is σ = 144312192. Its totient is φ = 35534400.

The previous prime is 83122121. The next prime is 83122159.

83122138 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29520 + ... + 32212.

It is an arithmetic number, because the mean of its divisors is an integer number (4509756).

Almost surely, 283122138 is an apocalyptic number.

83122138 is a deficient number, since it is larger than the sum of its proper divisors (61190054).

83122138 is a wasteful number, since it uses less digits than its factorization.

83122138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790.

The product of its digits is 2304, while the sum is 28.

The square root of 83122138 is about 9117.1343085424. The cubic root of 83122138 is about 436.4209279759.

It can be divided in two parts, 83 and 122138, that added together give a palindrome (122221).

The spelling of 83122138 in words is "eighty-three million, one hundred twenty-two thousand, one hundred thirty-eight".

Divisors: 1 2 11 22 23 46 61 122 253 506 671 1342 1403 2693 2806 5386 15433 29623 30866 59246 61939 123878 164273 328546 681329 1362658 1807003 3614006 3778279 7556558 41561069 83122138