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61250351012 = 2215312587753
BaseRepresentation
bin111001000010110011…
…100010111110100100
312212002122100012212222
4321002303202332210
52000420042213022
644045451331512
74265561251634
oct710263427644
9185078305788
1061250351012
1123a81254304
12ba54750b98
135a11800766
142d7096c6c4
1518d73d7242
hexe42ce2fa4

61250351012 has 6 divisors (see below), whose sum is σ = 107188114278. Its totient is φ = 30625175504.

The previous prime is 61250351011. The next prime is 61250351119. The reversal of 61250351012 is 21015305216.

61250351012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 37412843776 + 23837507236 = 193424^2 + 154394^2 .

It is a super-3 number, since 3×612503510123 (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (61250351011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7656293873 + ... + 7656293880.

It is an arithmetic number, because the mean of its divisors is an integer number (17864685713).

Almost surely, 261250351012 is an apocalyptic number.

It is an amenable number.

61250351012 is a deficient number, since it is larger than the sum of its proper divisors (45937763266).

61250351012 is a wasteful number, since it uses less digits than its factorization.

61250351012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15312587757 (or 15312587755 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 61250351012 its reverse (21015305216), we get a palindrome (82265656228).

The spelling of 61250351012 in words is "sixty-one billion, two hundred fifty million, three hundred fifty-one thousand, twelve".

Divisors: 1 2 4 15312587753 30625175506 61250351012