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61701600717 = 34761748157
BaseRepresentation
bin111001011101101100…
…111011010111001101
312220021002110002010000
4321131230323113031
52002331102210332
644202331234513
74313010644511
oct713554732715
9186232402100
1061701600717
1124192a43949
12bb5b8a8a39
135a84147213
142db4874141
151911d20b7c
hexe5db3b5cd

61701600717 has 10 divisors (see below), whose sum is σ = 92171527118. Its totient is φ = 41134400424.

The previous prime is 61701600707. The next prime is 61701600743. The reversal of 61701600717 is 71700610716.

It can be written as a sum of positive squares in only one way, i.e., 33937376841 + 27764223876 = 184221^2 + 166626^2 .

It is not a de Polignac number, because 61701600717 - 210 = 61701599693 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 (61701600707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 380873998 + ... + 380874159.

Almost surely, 261701600717 is an apocalyptic number.

It is an amenable number.

61701600717 is a deficient number, since it is larger than the sum of its proper divisors (30469926401).

61701600717 is an equidigital number, since it uses as much as digits as its factorization.

61701600717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761748169 (or 761748160 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 36.

Subtracting 61701600717 from its reverse (71700610716), we obtain a palindrome (9999009999).

The spelling of 61701600717 in words is "sixty-one billion, seven hundred one million, six hundred thousand, seven hundred seventeen".

Divisors: 1 3 9 27 81 761748157 2285244471 6855733413 20567200239 61701600717