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71513151006 = 23112626341257
BaseRepresentation
bin100001010011010000…
…1000001011000011110
320211120212121110211110
41002212201001120132
52132424331313011
652504103002450
75111106516423
oct1024641013036
9224525543743
1071513151006
11283683448a0
1211a39739426
136988a9278b
14366597dd4a
151cd83a6ba6
hex10a684161e

71513151006 has 32 divisors (see below), whose sum is σ = 156038416128. Its totient is φ = 21669301440.

The previous prime is 71513150977. The next prime is 71513151013. The reversal of 71513151006 is 60015131517.

It is a super-2 number, since 2×715131510062 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1712730 + ... + 1753986.

It is an arithmetic number, because the mean of its divisors is an integer number (4876200504).

Almost surely, 271513151006 is an apocalyptic number.

71513151006 is an abundant number, since it is smaller than the sum of its proper divisors (84525265122).

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

71513151006 is a wasteful number, since it uses less digits than its factorization.

71513151006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67536.

The product of its (nonzero) digits is 3150, while the sum is 30.

The spelling of 71513151006 in words is "seventy-one billion, five hundred thirteen million, one hundred fifty-one thousand, six".

Divisors: 1 2 3 6 11 22 33 66 26263 41257 52526 78789 82514 123771 157578 247542 288893 453827 577786 866679 907654 1361481 1733358 2722962 1083532591 2167065182 3250597773 6501195546 11918858501 23837717002 35756575503 71513151006