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29270029 = 199714657
BaseRepresentation
bin110111110101…
…0000000001101
32001002001221011
41233222000031
524443120104
62523205221
7503535235
oct157520015
961061834
1029270029
1115582008
129976811
1360aa959
143c5ccc5
152882904
hex1bea00d

29270029 has 4 divisors (see below), whose sum is σ = 29286684. Its totient is φ = 29253376.

The previous prime is 29270027. The next prime is 29270047. The reversal of 29270029 is 92007292.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15984004 + 13286025 = 3998^2 + 3645^2 .

It is a cyclic number.

It is not a de Polignac number, because 29270029 - 21 = 29270027 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29270027) 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, 5332 + ... + 9325.

It is an arithmetic number, because the mean of its divisors is an integer number (7321671).

Almost surely, 229270029 is an apocalyptic number.

It is an amenable number.

29270029 is a deficient number, since it is larger than the sum of its proper divisors (16655).

29270029 is a wasteful number, since it uses less digits than its factorization.

29270029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16654.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 29270029 is about 5410.1782780237. The cubic root of 29270029 is about 308.1823181266.

The spelling of 29270029 in words is "twenty-nine million, two hundred seventy thousand, twenty-nine".

Divisors: 1 1997 14657 29270029