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29130292 = 227282573
BaseRepresentation
bin110111100011…
…1111000110100
32000210222020201
41233013320310
524424132132
62520210244
7502413652
oct157077064
960728221
1029130292
1115497024
129909984
13605c179
143c23dd2
1528562e7
hex1bc7e34

29130292 has 6 divisors (see below), whose sum is σ = 50978018. Its totient is φ = 14565144.

The previous prime is 29130289. The next prime is 29130293. The reversal of 29130292 is 29203192.

It can be written as a sum of positive squares in only one way, i.e., 28686736 + 443556 = 5356^2 + 666^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 29130292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29130293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3641283 + ... + 3641290.

Almost surely, 229130292 is an apocalyptic number.

It is an amenable number.

29130292 is a deficient number, since it is larger than the sum of its proper divisors (21847726).

29130292 is a wasteful number, since it uses less digits than its factorization.

29130292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7282577 (or 7282575 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 29130292 is about 5397.2485582934. The cubic root of 29130292 is about 307.6911082069.

Subtracting 29130292 from its reverse (29203192), we obtain a square (72900 = 2702).

It can be divided in two parts, 29 and 130292, that added together give a 4-th power (130321 = 194).

The spelling of 29130292 in words is "twenty-nine million, one hundred thirty thousand, two hundred ninety-two".

Divisors: 1 2 4 7282573 14565146 29130292