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29301988 = 228388259
BaseRepresentation
bin110111111000…
…1110011100100
32001010200202211
41233301303210
530000130423
62524013204
7504030352
oct157616344
961120684
1029301988
11155a4021
129991204
1360bc371
143c6a7d2
15288c10d
hex1bf1ce4

29301988 has 12 divisors (see below), whose sum is σ = 51896880. Its totient is φ = 14474312.

The previous prime is 29301959. The next prime is 29301989. The reversal of 29301988 is 88910392.

It is a super-5 number, since 5×293019885 (a number of 39 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29301988.

It is not an unprimeable number, because it can be changed into a prime (29301989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43798 + ... + 44461.

It is an arithmetic number, because the mean of its divisors is an integer number (4324740).

Almost surely, 229301988 is an apocalyptic number.

It is an amenable number.

29301988 is a deficient number, since it is larger than the sum of its proper divisors (22594892).

29301988 is a wasteful number, since it uses less digits than its factorization.

29301988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88346 (or 88344 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 29301988 is about 5413.1310717551. The cubic root of 29301988 is about 308.2944421039.

The spelling of 29301988 in words is "twenty-nine million, three hundred one thousand, nine hundred eighty-eight".

Divisors: 1 2 4 83 166 332 88259 176518 353036 7325497 14650994 29301988