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61326061465 = 5103954712473
BaseRepresentation
bin111001000111010100…
…010110111110011001
312212021220210201002211
4321013110112332121
52001043432431330
644101154155121
74300500631054
oct710724267631
9185256721084
1061326061465
112400aa65729
12ba75b82aa1
135a243bb546
142d7aa39a9b
1518ddd8ed2a
hexe47516f99

61326061465 has 16 divisors (see below), whose sum is σ = 74319493248. Its totient is φ = 48575546496.

The previous prime is 61326061441. The next prime is 61326061469. The reversal of 61326061465 is 56416062316.

It is a cyclic number.

It is not a de Polignac number, because 61326061465 - 27 = 61326061337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61326061469) 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, 4910469 + ... + 4922941.

It is an arithmetic number, because the mean of its divisors is an integer number (4644968328).

Almost surely, 261326061465 is an apocalyptic number.

It is an amenable number.

61326061465 is a deficient number, since it is larger than the sum of its proper divisors (12993431783).

61326061465 is a wasteful number, since it uses less digits than its factorization.

61326061465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22128.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 61326061465 in words is "sixty-one billion, three hundred twenty-six million, sixty-one thousand, four hundred sixty-five".

Divisors: 1 5 103 515 9547 12473 47735 62365 983341 1284719 4916705 6423595 119079731 595398655 12265212293 61326061465