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29233217380 = 2252657550117
BaseRepresentation
bin11011001110011011…
…110111111101100100
32210110022110022100211
4123032123313331210
5434332200424010
621232441145204
72053266151003
oct331633677544
983408408324
1029233217380
1111441430994
1257ba18b204
1329ab572783
1415b4688c3a
15b6166408a
hex6ce6f7f64

29233217380 has 24 divisors (see below), whose sum is σ = 61412973048. Its totient is φ = 11688864768.

The previous prime is 29233217369. The next prime is 29233217381. The reversal of 29233217380 is 8371233292.

It can be written as a sum of positive squares in 4 ways, for example, as 8110083136 + 21123134244 = 90056^2 + 145338^2 .

It is not an unprimeable number, because it can be changed into a prime (29233217381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221919 + ... + 328198.

It is an arithmetic number, because the mean of its divisors is an integer number (2558873877).

Almost surely, 229233217380 is an apocalyptic number.

29233217380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29233217380 is an abundant number, since it is smaller than the sum of its proper divisors (32179755668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29233217380 is a wasteful number, since it uses less digits than its factorization.

29233217380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552783 (or 552781 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 29233217380 in words is "twenty-nine billion, two hundred thirty-three million, two hundred seventeen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 2657 5314 10628 13285 26570 53140 550117 1100234 2200468 2750585 5501170 11002340 1461660869 2923321738 5846643476 7308304345 14616608690 29233217380