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29270378471 = 199147087329
BaseRepresentation
bin11011010000101001…
…101000011111100111
32210112220101021210112
4123100221220133213
5434421204102341
621240245443235
72054230053245
oct332051503747
983486337715
1029270378471
1111460402634
12580a71051b
1329b6184099
1415b959d795
15b64a54aeb
hex6d0a687e7

29270378471 has 4 divisors (see below), whose sum is σ = 29417466000. Its totient is φ = 29123290944.

The previous prime is 29270378453. The next prime is 29270378479. The reversal of 29270378471 is 17487307292.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 29270378471 - 226 = 29203269607 is a prime.

It is a super-3 number, since 3×292703784713 (a number of 32 digits) contains 333 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 (29270378479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73543466 + ... + 73543863.

It is an arithmetic number, because the mean of its divisors is an integer number (7354366500).

Almost surely, 229270378471 is an apocalyptic number.

29270378471 is a deficient number, since it is larger than the sum of its proper divisors (147087529).

29270378471 is a wasteful number, since it uses less digits than its factorization.

29270378471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147087528.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 29270378471 in words is "twenty-nine billion, two hundred seventy million, three hundred seventy-eight thousand, four hundred seventy-one".

Divisors: 1 199 147087329 29270378471