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102003643973 = 71112710430887
BaseRepresentation
bin101111011111111100…
…1000001011001000101
3100202021210212000001202
41132333321001121011
53132400413101343
6114505420032245
710240513445060
oct1367771013105
9322253760052
10102003643973
113a294441510
1217928992685
1398079615aa
144d191c78d7
1529c00bbdb8
hex17bfe41645

102003643973 has 16 divisors (see below), whose sum is σ = 128174751744. Its totient is φ = 78857498160.

The previous prime is 102003643961. The next prime is 102003644009. The reversal of 102003643973 is 379346300201.

It is not a de Polignac number, because 102003643973 - 26 = 102003643909 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 (102003643073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5205665 + ... + 5225222.

It is an arithmetic number, because the mean of its divisors is an integer number (8010921984).

Almost surely, 2102003643973 is an apocalyptic number.

It is an amenable number.

102003643973 is a deficient number, since it is larger than the sum of its proper divisors (26171107771).

102003643973 is a wasteful number, since it uses less digits than its factorization.

102003643973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10431032.

The product of its (nonzero) digits is 81648, while the sum is 38.

The spelling of 102003643973 in words is "one hundred two billion, three million, six hundred forty-three thousand, nine hundred seventy-three".

Divisors: 1 7 11 77 127 889 1397 9779 10430887 73016209 114739757 803178299 1324722649 9273058543 14571949139 102003643973