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61830005271 = 327176051667
BaseRepresentation
bin111001100101010110…
…110000001000010111
312220121001001201001020
4321211112300020113
52003111440132041
644223155332223
74316130242016
oct714526601027
9186531051036
1061830005271
1124249476111
12bb968b1073
135aa4924748
142dc793aa7d
15191d236866
hexe655b0217

61830005271 has 8 divisors (see below), whose sum is σ = 82744214784. Its totient is φ = 41067899640.

The previous prime is 61830005249. The next prime is 61830005299. The reversal of 61830005271 is 17250003816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61830005271 - 222 = 61825810967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61830005201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38025021 + ... + 38026646.

It is an arithmetic number, because the mean of its divisors is an integer number (10343026848).

Almost surely, 261830005271 is an apocalyptic number.

61830005271 is a deficient number, since it is larger than the sum of its proper divisors (20914209513).

61830005271 is a wasteful number, since it uses less digits than its factorization.

61830005271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76051941.

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 61830005271 in words is "sixty-one billion, eight hundred thirty million, five thousand, two hundred seventy-one".

Divisors: 1 3 271 813 76051667 228155001 20610001757 61830005271