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71896304830 = 2571027090069
BaseRepresentation
bin100001011110101011…
…0101000110010111110
320212120120120201001211
41002331112220302332
52134220423223310
653010111155034
75123441336110
oct1027526506276
9225516521054
1071896304830
1128544653a49
1211b25b15a7a
136a1a28630c
1436a07db3b0
151d0bd3dc8a
hex10bd5a8cbe

71896304830 has 16 divisors (see below), whose sum is σ = 147900970080. Its totient is φ = 24650161632.

The previous prime is 71896304807. The next prime is 71896304839. The reversal of 71896304830 is 3840369817.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71896304839) 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, 513544965 + ... + 513545104.

It is an arithmetic number, because the mean of its divisors is an integer number (9243810630).

Almost surely, 271896304830 is an apocalyptic number.

71896304830 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71896304830 is an abundant number, since it is smaller than the sum of its proper divisors (76004665250).

71896304830 is a wasteful number, since it uses less digits than its factorization.

71896304830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027090083.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 71896304830 in words is "seventy-one billion, eight hundred ninety-six million, three hundred four thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 1027090069 2054180138 5135450345 7189630483 10270900690 14379260966 35948152415 71896304830