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29110919110920 = 2332591191339719
BaseRepresentation
bin1101001111001111010011…
…11111100010000100001000
310211001222101000010222112100
412213213221333202010020
512303423130243022140
6141525212134113400
76063123466463253
oct647475177420410
9124058330128470
1029110919110920
119303964a10979
123321a83aab860
1313321bcbc882a
14728d9421a09a
153573961ae530
hex1a79e9fe2108

29110919110920 has 192 divisors, whose sum is σ = 94734457459200. Its totient is φ = 7752743631360.

The previous prime is 29110919110907. The next prime is 29110919110951. The reversal of 29110919110920 is 2901191901192.

It is a super-2 number, since 2×291109191109202 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2995253821 + ... + 2995263539.

It is an arithmetic number, because the mean of its divisors is an integer number (493408632600).

Almost surely, 229110919110920 is an apocalyptic number.

29110919110920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29110919110920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47367228729600).

29110919110920 is an abundant number, since it is smaller than the sum of its proper divisors (65623538348280).

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

29110919110920 is a wasteful number, since it uses less digits than its factorization.

29110919110920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19780 (or 19773 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 45.

The spelling of 29110919110920 in words is "twenty-nine trillion, one hundred ten billion, nine hundred nineteen million, one hundred ten thousand, nine hundred twenty".