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61350430361 = 11192767106087
BaseRepresentation
bin111001001000110001…
…010100011010011001
312212100121122202221112
4321020301110122121
52001121202232421
644103424350105
74301215024313
oct711061243231
9185317582845
1061350430361
112402279a410
12ba82175335
135a294713cc
142d7dd807b3
1518e10a545b
hexe48c54699

61350430361 has 16 divisors (see below), whose sum is σ = 70476380160. Its totient is φ = 52818097680.

The previous prime is 61350430357. The next prime is 61350430363. The reversal of 61350430361 is 16303405316.

It is a cyclic number.

It is not a de Polignac number, because 61350430361 - 22 = 61350430357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61350430363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525260 + ... + 631346.

It is an arithmetic number, because the mean of its divisors is an integer number (4404773760).

Almost surely, 261350430361 is an apocalyptic number.

It is an amenable number.

61350430361 is a deficient number, since it is larger than the sum of its proper divisors (9125949799).

61350430361 is a wasteful number, since it uses less digits than its factorization.

61350430361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108884.

The product of its (nonzero) digits is 19440, while the sum is 32.

Adding to 61350430361 its reverse (16303405316), we get a palindrome (77653835677).

The spelling of 61350430361 in words is "sixty-one billion, three hundred fifty million, four hundred thirty thousand, three hundred sixty-one".

Divisors: 1 11 19 209 2767 30437 52573 106087 578303 1166957 2015653 22172183 293542729 3228970019 5577311851 61350430361