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71051620701 = 3375312077447
BaseRepresentation
bin100001000101100000…
…0011011000101011101
320210101201011022021110
41002023000123011131
52131003203330301
652350214452233
75063503545135
oct1021300330535
9223351138243
1071051620701
1128150873296
121192b064079
136914289819
14362055dac5
151cacadc0d6
hex108b01b15d

71051620701 has 16 divisors (see below), whose sum is σ = 99131693184. Its totient is φ = 45217957824.

The previous prime is 71051620699. The next prime is 71051620727. The reversal of 71051620701 is 10702615017.

It is not a de Polignac number, because 71051620701 - 21 = 71051620699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71051620741) 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, 6032841 + ... + 6044606.

It is an arithmetic number, because the mean of its divisors is an integer number (6195730824).

Almost surely, 271051620701 is an apocalyptic number.

It is an amenable number.

71051620701 is a deficient number, since it is larger than the sum of its proper divisors (28080072483).

71051620701 is a wasteful number, since it uses less digits than its factorization.

71051620701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12077540.

The product of its (nonzero) digits is 2940, while the sum is 30.

The spelling of 71051620701 in words is "seventy-one billion, fifty-one million, six hundred twenty thousand, seven hundred one".

Divisors: 1 3 37 53 111 159 1961 5883 12077447 36232341 446865539 640104691 1340596617 1920314073 23683873567 71051620701