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29686080 = 2635172107
BaseRepresentation
bin111000100111…
…1100101000000
32001212012122110
41301033211000
530044423310
62540135320
7510220224
oct161174500
961765573
1029686080
1115836656
129b37540
1361c5138
143d2a784
152915d20
hex1c4f940

29686080 has 168 divisors, whose sum is σ = 101059488. Its totient is φ = 7380992.

The previous prime is 29686079. The next prime is 29686081. The reversal of 29686080 is 8068692.

It is an interprime number because it is at equal distance from previous prime (29686079) and next prime (29686081).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29686081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277387 + ... + 277493.

Almost surely, 229686080 is an apocalyptic number.

29686080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29686080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50529744).

29686080 is an abundant number, since it is smaller than the sum of its proper divisors (71373408).

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

29686080 is a wasteful number, since it uses less digits than its factorization.

29686080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 29686080 is about 5448.4933697308. The cubic root of 29686080 is about 309.6356454628.

The spelling of 29686080 in words is "twenty-nine million, six hundred eighty-six thousand, eighty".