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29075381 = 237091783
BaseRepresentation
bin110111011101…
…0011110110101
32000201011220222
41232322132311
524420403011
62515104125
7502064606
oct156723665
960634828
1029075381
1115459845
1298a2045
13604018a
143c0bdad
152844ddb
hex1bba7b5

29075381 has 8 divisors (see below), whose sum is σ = 30399360. Its totient is φ = 27756432.

The previous prime is 29075369. The next prime is 29075393. The reversal of 29075381 is 18357092.

It is an interprime number because it is at equal distance from previous prime (29075369) and next prime (29075393).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29075381 - 26 = 29075317 is a prime.

It is a super-2 number, since 2×290753812 = 1690755560590322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29075341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15416 + ... + 17198.

It is an arithmetic number, because the mean of its divisors is an integer number (3799920).

Almost surely, 229075381 is an apocalyptic number.

It is an amenable number.

29075381 is a deficient number, since it is larger than the sum of its proper divisors (1323979).

29075381 is a wasteful number, since it uses less digits than its factorization.

29075381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 29075381 is about 5392.1592150084. The cubic root of 29075381 is about 307.4976526139.

The spelling of 29075381 in words is "twenty-nine million, seventy-five thousand, three hundred eighty-one".

Divisors: 1 23 709 1783 16307 41009 1264147 29075381