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13669033679 = 72278959871
BaseRepresentation
bin11001011101011110…
…01110011011001111
31022021121200212010122
430232233032123033
5210443233034204
610140210455155
7662505604100
oct145657163317
938247625118
1013669033679
1158848a4354
1227958944bb
13139ab8b312
149395623a7
155500590be
hex32ebce6cf

13669033679 has 6 divisors (see below), whose sum is σ = 15900712704. Its totient is φ = 11716314540.

The previous prime is 13669033661. The next prime is 13669033687. The reversal of 13669033679 is 97633096631.

It is a de Polignac number, because none of the positive numbers 2k-13669033679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13669033679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13669030679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139479887 + ... + 139479984.

It is an arithmetic number, because the mean of its divisors is an integer number (2650118784).

Almost surely, 213669033679 is an apocalyptic number.

13669033679 is a deficient number, since it is larger than the sum of its proper divisors (2231679025).

13669033679 is an equidigital number, since it uses as much as digits as its factorization.

13669033679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278959885 (or 278959878 counting only the distinct ones).

The product of its (nonzero) digits is 3306744, while the sum is 53.

The spelling of 13669033679 in words is "thirteen billion, six hundred sixty-nine million, thirty-three thousand, six hundred seventy-nine".

Divisors: 1 7 49 278959871 1952719097 13669033679