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30783097683 = 341322977543
BaseRepresentation
bin11100101010110100…
…001100101101010011
32221110022211101110000
4130222310030231103
51001020433111213
622050324341043
72136556004322
oct345264145523
987408741400
1030783097683
111206728a9a8
125b71244783
132b976aa800
1416c04540b9
15c02762c73
hex72ad0cb53

30783097683 has 60 divisors (see below), whose sum is σ = 51511703760. Its totient is φ = 18289986624.

The previous prime is 30783097669. The next prime is 30783097687. The reversal of 30783097683 is 38679038703.

It is not a de Polignac number, because 30783097683 - 25 = 30783097651 is a prime.

It is a super-2 number, since 2×307830976832 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30783097687) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 358210 + ... + 435752.

It is an arithmetic number, because the mean of its divisors is an integer number (858528396).

Almost surely, 230783097683 is an apocalyptic number.

30783097683 is a deficient number, since it is larger than the sum of its proper divisors (20728606077).

30783097683 is a wasteful number, since it uses less digits than its factorization.

30783097683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77610 (or 77588 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 30783097683 in words is "thirty billion, seven hundred eighty-three million, ninety-seven thousand, six hundred eighty-three".

Divisors: 1 3 9 13 27 29 39 81 87 117 169 261 351 377 507 783 1053 1131 1521 2349 3393 4563 4901 10179 13689 14703 30537 44109 77543 132327 232629 396981 697887 1008059 2093661 2248747 3024177 6280983 6746241 9072531 13104767 20238723 27217593 29233711 39314301 60716169 81652779 87701133 117942903 182148507 263103399 353828709 380038243 789310197 1061486127 1140114729 2367930591 3420344187 10261032561 30783097683