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61226041207 = 78713777839
BaseRepresentation
bin111001000001010110…
…110011111101110111
312212000221121011002211
4321001112303331313
52000342331304312
644043222314251
74265144522602
oct710126637567
9185027534084
1061226041207
1123a6955aa61
12ba48588987
135a0976b766
142d6b641339
1518d51d43a7
hexe415b3f77

61226041207 has 4 divisors (see below), whose sum is σ = 61226897760. Its totient is φ = 61225184656.

The previous prime is 61226041187. The next prime is 61226041211. The reversal of 61226041207 is 70214062216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61226041207 - 211 = 61226039159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61226041277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310207 + ... + 467632.

It is an arithmetic number, because the mean of its divisors is an integer number (15306724440).

Almost surely, 261226041207 is an apocalyptic number.

61226041207 is a deficient number, since it is larger than the sum of its proper divisors (856553).

61226041207 is an equidigital number, since it uses as much as digits as its factorization.

61226041207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856552.

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 61226041207 in words is "sixty-one billion, two hundred twenty-six million, forty-one thousand, two hundred seven".

Divisors: 1 78713 777839 61226041207