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83018514072 = 23313496953549
BaseRepresentation
bin100110101010001001…
…0011111111010011000
321221021200222110212110
41031110102133322120
52330010214422242
6102045502512320
75666163504114
oct1152422377230
9257250873773
1083018514072
113223187240a
121410a8956a0
137aa05cc310
144037a00744
15225d4bd39c
hex135449fe98

83018514072 has 64 divisors (see below), whose sum is σ = 223560540000. Its totient is φ = 25538540544.

The previous prime is 83018514071. The next prime is 83018514091. The reversal of 83018514072 is 27041581038.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 83018514072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83018514071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1523554 + ... + 1577102.

Almost surely, 283018514072 is an apocalyptic number.

It is an amenable number.

83018514072 is an abundant number, since it is smaller than the sum of its proper divisors (140542025928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83018514072 is a wasteful number, since it uses less digits than its factorization.

83018514072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58540 (or 58536 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 83018514072 in words is "eighty-three billion, eighteen million, five hundred fourteen thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 4969 9938 14907 19876 29814 39752 53549 59628 64597 107098 119256 129194 160647 193791 214196 258388 321294 387582 428392 516776 642588 696137 775164 1285176 1392274 1550328 2088411 2784548 4176822 5569096 8353644 16707288 266084981 532169962 798254943 1064339924 1596509886 2128679848 3193019772 3459104753 6386039544 6918209506 10377314259 13836419012 20754628518 27672838024 41509257036 83018514072