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29275390 = 2519154081
BaseRepresentation
bin110111110101…
…1010011111110
32001002100021201
41233223103332
524443303030
62523250114
7503556664
oct157532376
961070251
1029275390
1115586041
12997993a
1360b0221
143c60c34
1528842ca
hex1beb4fe

29275390 has 16 divisors (see below), whose sum is σ = 55469520. Its totient is φ = 11093760.

The previous prime is 29275369. The next prime is 29275397. The reversal of 29275390 is 9357292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29275397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76851 + ... + 77230.

It is an arithmetic number, because the mean of its divisors is an integer number (3466845).

Almost surely, 229275390 is an apocalyptic number.

29275390 is a deficient number, since it is larger than the sum of its proper divisors (26194130).

29275390 is a wasteful number, since it uses less digits than its factorization.

29275390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154107.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 29275390 is about 5410.6737103618. The cubic root of 29275390 is about 308.2011321900.

The spelling of 29275390 in words is "twenty-nine million, two hundred seventy-five thousand, three hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 154081 308162 770405 1540810 2927539 5855078 14637695 29275390