Search a number
-
+
61276396970 = 2540115280897
BaseRepresentation
bin111001000100010110…
…111001110110101010
312212011110100111020002
4321010112321312222
52000443224200340
644052221503002
74266325531445
oct710426716652
9185143314202
1061276396970
1123a94a23a98
12ba61411a62
135a1701ca79
142d741cc65c
1518d982e715
hexe445b9daa

61276396970 has 16 divisors (see below), whose sum is σ = 110572577928. Its totient is φ = 24449433600.

The previous prime is 61276396967. The next prime is 61276396981. The reversal of 61276396970 is 7969367216.

It can be written as a sum of positive squares in 4 ways, for example, as 59950053409 + 1326343561 = 244847^2 + 36419^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7636439 + ... + 7644458.

Almost surely, 261276396970 is an apocalyptic number.

61276396970 is a deficient number, since it is larger than the sum of its proper divisors (49296180958).

61276396970 is a wasteful number, since it uses less digits than its factorization.

61276396970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15281305.

The product of its (nonzero) digits is 5143824, while the sum is 56.

The spelling of 61276396970 in words is "sixty-one billion, two hundred seventy-six million, three hundred ninety-six thousand, nine hundred seventy".

Divisors: 1 2 5 10 401 802 2005 4010 15280897 30561794 76404485 152808970 6127639697 12255279394 30638198485 61276396970