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13679028 = 22321134543
BaseRepresentation
bin110100001011…
…100110110100
3221201222002200
4310023212310
512000212103
61205104500
7224161356
oct64134664
927658080
1013679028
1177a3290
1246b8130
132aac2cc
141b610d6
1513030a3
hexd0b9b4

13679028 has 36 divisors (see below), whose sum is σ = 37722048. Its totient is φ = 4145040.

The previous prime is 13679027. The next prime is 13679041. The reversal of 13679028 is 82097631.

13679028 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13678983 and 13679001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13679023) 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, 16876 + ... + 17667.

Almost surely, 213679028 is an apocalyptic number.

13679028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13679028 is an abundant number, since it is smaller than the sum of its proper divisors (24043020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13679028 is a wasteful number, since it uses less digits than its factorization.

13679028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34564 (or 34559 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 13679028 is about 3698.5170000961. The cubic root of 13679028 is about 239.1580917472.

13679028 divided by its sum of digits (36) gives a palindrome (379973).

The spelling of 13679028 in words is "thirteen million, six hundred seventy-nine thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 34543 69086 103629 138172 207258 310887 379973 414516 621774 759946 1139919 1243548 1519892 2279838 3419757 4559676 6839514 13679028