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13537666051 = 721321252223
BaseRepresentation
bin11001001101110100…
…00110010000000011
31021221110111200121221
430212322012100003
5210211120303201
610115155055511
7656322156100
oct144672062003
937843450557
1013537666051
115817728968
1227598a1597
1313798b41b0
14925d27aa7
1554375a4a1
hex326e86403

13537666051 has 12 divisors (see below), whose sum is σ = 16959274752. Its totient is φ = 10711119888.

The previous prime is 13537665989. The next prime is 13537666061. The reversal of 13537666051 is 15066673531.

It is not a de Polignac number, because 13537666051 - 211 = 13537664003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13537665989 and 13537666007.

It is not an unprimeable number, because it can be changed into a prime (13537666061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10625475 + ... + 10626748.

It is an arithmetic number, because the mean of its divisors is an integer number (1413272896).

Almost surely, 213537666051 is an apocalyptic number.

13537666051 is a deficient number, since it is larger than the sum of its proper divisors (3421608701).

13537666051 is a wasteful number, since it uses less digits than its factorization.

13537666051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21252250 (or 21252243 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 43.

The spelling of 13537666051 in words is "thirteen billion, five hundred thirty-seven million, six hundred sixty-six thousand, fifty-one".

Divisors: 1 7 13 49 91 637 21252223 148765561 276278899 1041358927 1933952293 13537666051