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29155323253 = 721394280623
BaseRepresentation
bin11011001001110010…
…101110110101110101
32210020212212212201011
4123021302232311311
5434202230321003
621221015432221
72051332105300
oct331162566565
983225785634
1029155323253
1111401468981
125798085671
13299839ba84
1415a81adb37
15b598c946d
hex6c9caed75

29155323253 has 12 divisors (see below), whose sum is σ = 34159379520. Its totient is φ = 24810485112.

The previous prime is 29155323251. The next prime is 29155323287. The reversal of 29155323253 is 35232355192.

It is not a de Polignac number, because 29155323253 - 21 = 29155323251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29155323251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2133501 + ... + 2147122.

It is an arithmetic number, because the mean of its divisors is an integer number (2846614960).

Almost surely, 229155323253 is an apocalyptic number.

It is an amenable number.

29155323253 is a deficient number, since it is larger than the sum of its proper divisors (5004056267).

29155323253 is a wasteful number, since it uses less digits than its factorization.

29155323253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4280776 (or 4280769 counting only the distinct ones).

The product of its digits is 243000, while the sum is 40.

The spelling of 29155323253 in words is "twenty-nine billion, one hundred fifty-five million, three hundred twenty-three thousand, two hundred fifty-three".

Divisors: 1 7 49 139 973 6811 4280623 29964361 209750527 595006597 4165046179 29155323253