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83083180997 = 176537484297
BaseRepresentation
bin100110101100000100…
…1001011101111000101
321221110012122220012202
41031120021023233011
52330123243242442
6102100132524245
76000610246325
oct1153011135705
9257405586182
1083083180997
1132265320653
1214128480685
137ab0b2157b
144042435285
152263ee3c32
hex135824bbc5

83083180997 has 8 divisors (see below), whose sum is σ = 88105156056. Its totient is φ = 78076175872.

The previous prime is 83083180969. The next prime is 83083181029. The reversal of 83083180997 is 79908138038.

It can be written as a sum of positive squares in 4 ways, for example, as 19198596481 + 63884584516 = 138559^2 + 252754^2 .

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 83083180997 - 232 = 78788213701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83083180967) 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, 3731048 + ... + 3753249.

It is an arithmetic number, because the mean of its divisors is an integer number (11013144507).

Almost surely, 283083180997 is an apocalyptic number.

It is an amenable number.

83083180997 is a deficient number, since it is larger than the sum of its proper divisors (5021975059).

83083180997 is a wasteful number, since it uses less digits than its factorization.

83083180997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7484967.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 83083180997 in words is "eighty-three billion, eighty-three million, one hundred eighty thousand, nine hundred ninety-seven".

Divisors: 1 17 653 11101 7484297 127233049 4887245941 83083180997