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61064467848 = 2332896994561
BaseRepresentation
bin111000110111101110…
…011101010110001000
312211121200120101010100
4320313232131112020
52000030000432343
644015211245400
74261143261336
oct706756352610
9184550511110
1061064467848
112399633355a
12ba02449860
1359b2149b17
142d53dc2b56
1518c5e1a9d3
hexe37b9d588

61064467848 has 48 divisors (see below), whose sum is σ = 165403122300. Its totient is φ = 20352337920.

The previous prime is 61064467847. The next prime is 61064467853. The reversal of 61064467848 is 84876446016.

It can be written as a sum of positive squares in 2 ways, for example, as 60112251684 + 952216164 = 245178^2 + 30858^2 .

It is a super-2 number, since 2×610644678482 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61064467794 and 61064467803.

It is not an unprimeable number, because it can be changed into a prime (61064467847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 598488 + ... + 693048.

Almost surely, 261064467848 is an apocalyptic number.

It is an amenable number.

61064467848 is an abundant number, since it is smaller than the sum of its proper divisors (104338654452).

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

61064467848 is a wasteful number, since it uses less digits than its factorization.

61064467848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103542 (or 103535 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 61064467848 in words is "sixty-one billion, sixty-four million, four hundred sixty-seven thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 8969 17938 26907 35876 53814 71752 80721 94561 107628 161442 189122 215256 283683 322884 378244 567366 645768 756488 851049 1134732 1702098 2269464 3404196 6808392 848117609 1696235218 2544352827 3392470436 5088705654 6784940872 7633058481 10177411308 15266116962 20354822616 30532233924 61064467848