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29213028 = 22331320807
BaseRepresentation
bin110111101110…
…0000101100100
32000222011202000
41233130011210
524434304103
62522045300
7503210115
oct157340544
960864660
1029213028
11155431a9
129949830
13608aa20
143c4620c
152870aa3
hex1bdc164

29213028 has 48 divisors (see below), whose sum is σ = 81567360. Its totient is φ = 8988192.

The previous prime is 29213003. The next prime is 29213053. The reversal of 29213028 is 82031292.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (29213003) and next prime (29213053).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 29212992 and 29213010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9000 + ... + 11807.

It is an arithmetic number, because the mean of its divisors is an integer number (1699320).

Almost surely, 229213028 is an apocalyptic number.

It is an amenable number.

29213028 is an abundant number, since it is smaller than the sum of its proper divisors (52354332).

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

29213028 is a wasteful number, since it uses less digits than its factorization.

29213028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20833 (or 20825 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 29213028 is about 5404.9077697959. The cubic root of 29213028 is about 307.9821347933.

The spelling of 29213028 in words is "twenty-nine million, two hundred thirteen thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 108 117 156 234 351 468 702 1404 20807 41614 62421 83228 124842 187263 249684 270491 374526 540982 561789 749052 811473 1081964 1123578 1622946 2247156 2434419 3245892 4868838 7303257 9737676 14606514 29213028