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1311226115434 = 213911634055581
BaseRepresentation
bin10011000101001011001…
…010101011010101101010
311122100111121021012112021
4103011023022223111222
5132440342341143214
62442211410135054
7163506256041034
oct23051312532552
94570447235467
101311226115434
114660a6a5a944
1219215ab8148a
1396856b20bb1
144766c4b8c54
152419477b924
hex1314b2ab56a

1311226115434 has 16 divisors (see below), whose sum is σ = 1982692928160. Its totient is φ = 650336586480.

The previous prime is 1311226115431. The next prime is 1311226115449. The reversal of 1311226115434 is 4345116221131.

It is a super-2 number, since 2×13112261154342 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1311226115434.

It is not an unprimeable number, because it can be changed into a prime (1311226115431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1704477 + ... + 2351104.

It is an arithmetic number, because the mean of its divisors is an integer number (123918308010).

Almost surely, 21311226115434 is an apocalyptic number.

1311226115434 is a deficient number, since it is larger than the sum of its proper divisors (671466812726).

1311226115434 is a wasteful number, since it uses less digits than its factorization.

1311226115434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056885.

The product of its digits is 17280, while the sum is 34.

The spelling of 1311226115434 in words is "one trillion, three hundred eleven billion, two hundred twenty-six million, one hundred fifteen thousand, four hundred thirty-four".

Divisors: 1 2 139 278 1163 2326 161657 323314 4055581 8111162 563725759 1127451518 4716640703 9433281406 655613057717 1311226115434