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71254212010 = 25411277136093
BaseRepresentation
bin100001001011100010…
…1001111110110101010
320210220211101000022021
41002113011033312222
52131412034241020
652422253015054
75101513544302
oct1022705176652
9223824330267
1071254212010
1128245166123
1211986a8448a
136947240437
14363d418602
151cc07a91aa
hex109714fdaa

71254212010 has 32 divisors (see below), whose sum is σ = 131489667792. Its totient is φ = 27784542720.

The previous prime is 71254211843. The next prime is 71254212017. The reversal of 71254212010 is 1021245217.

It can be written as a sum of positive squares in 8 ways, for example, as 9477606609 + 61776605401 = 97353^2 + 248549^2 .

It is not an unprimeable number, because it can be changed into a prime (71254212017) 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, 455524 + ... + 591616.

Almost surely, 271254212010 is an apocalyptic number.

71254212010 is a deficient number, since it is larger than the sum of its proper divisors (60235455782).

71254212010 is a wasteful number, since it uses less digits than its factorization.

71254212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137418.

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 71254212010 its reverse (1021245217), we get a palindrome (72275457227).

The spelling of 71254212010 in words is "seventy-one billion, two hundred fifty-four million, two hundred twelve thousand, ten".

Divisors: 1 2 5 10 41 82 205 410 1277 2554 6385 12770 52357 104714 136093 261785 272186 523570 680465 1360930 5579813 11159626 27899065 55798130 173790761 347581522 868953805 1737907610 7125421201 14250842402 35627106005 71254212010