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29005051281492 = 2231113312687202921
BaseRepresentation
bin1101001100001010000111…
…10001110100000001010100
310210200212002220011000112210
412212011003301310001110
512300204321112001432
6141404423035113420
76052355132000316
oct646050361640124
9123625086130483
1029005051281492
119272a78319770
123305458ba2870
13132521a818a90
14723bcdb537b6
1535474bc488cc
hex1a6143c74054

29005051281492 has 192 divisors, whose sum is σ = 82106150289408. Its totient is φ = 7848620928000.

The previous prime is 29005051281491. The next prime is 29005051281511. The reversal of 29005051281492 is 29418215050092.

It is a super-2 number, since 2×290050512814922 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29005051281491) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 142836192 + ... + 143039112.

It is an arithmetic number, because the mean of its divisors is an integer number (427636199424).

Almost surely, 229005051281492 is an apocalyptic number.

29005051281492 is a gapful number since it is divisible by the number (22) 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 29005051281492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41053075144704).

29005051281492 is an abundant number, since it is smaller than the sum of its proper divisors (53101099007916).

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

29005051281492 is a wasteful number, since it uses less digits than its factorization.

29005051281492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205670 (or 205668 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 29005051281492 in words is "twenty-nine trillion, five billion, fifty-one million, two hundred eighty-one thousand, four hundred ninety-two".