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73003910020 = 22512841284261
BaseRepresentation
bin100001111111101011…
…1110100001110000100
320222102202201212202021
41003333113310032010
52144003000110040
653312035052524
75163050665546
oct1037727641604
9228382655667
1073003910020
1128a62893138
1212194a41144
136b6589a7c2
143767959696
151d741c824a
hex10ff5f4384

73003910020 has 24 divisors (see below), whose sum is σ = 153320689368. Its totient is φ = 29199187200.

The previous prime is 73003910017. The next prime is 73003910027. The reversal of 73003910020 is 2001930037.

It can be written as a sum of positive squares in 4 ways, for example, as 4565164356 + 68438745664 = 67566^2 + 261608^2 .

It is not an unprimeable number, because it can be changed into a prime (73003910027) 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, 114690 + ... + 398950.

It is an arithmetic number, because the mean of its divisors is an integer number (6388362057).

Almost surely, 273003910020 is an apocalyptic number.

It is an amenable number.

73003910020 is an abundant number, since it is smaller than the sum of its proper divisors (80316779348).

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

73003910020 is a wasteful number, since it uses less digits than its factorization.

73003910020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297111 (or 297109 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 25.

The spelling of 73003910020 in words is "seventy-three billion, three million, nine hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 12841 25682 51364 64205 128410 256820 284261 568522 1137044 1421305 2842610 5685220 3650195501 7300391002 14600782004 18250977505 36501955010 73003910020