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29052140 = 22513195881
BaseRepresentation
bin110111011010…
…0110011101100
32000200000001012
41232310303230
524414132030
62514404352
7501640055
oct156646354
960600035
1029052140
1115443337
1298906b8
136032720
143c0372c
15283d095
hex1bb4cec

29052140 has 48 divisors (see below), whose sum is σ = 69172320. Its totient is φ = 10160640.

The previous prime is 29052061. The next prime is 29052143. The reversal of 29052140 is 4125092.

It is not an unprimeable number, because it can be changed into a prime (29052143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2000 + ... + 7880.

It is an arithmetic number, because the mean of its divisors is an integer number (1441090).

Almost surely, 229052140 is an apocalyptic number.

29052140 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 29052140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34586160).

29052140 is an abundant number, since it is smaller than the sum of its proper divisors (40120180).

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

29052140 is a wasteful number, since it uses less digits than its factorization.

29052140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5922 (or 5920 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 29052140 is about 5390.0037105739. The cubic root of 29052140 is about 307.4156994550.

It can be divided in two parts, 29052 and 140, that added together give a palindrome (29192).

The spelling of 29052140 in words is "twenty-nine million, fifty-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 19 20 26 38 52 65 76 95 130 190 247 260 380 494 988 1235 2470 4940 5881 11762 23524 29405 58810 76453 111739 117620 152906 223478 305812 382265 446956 558695 764530 1117390 1452607 1529060 2234780 2905214 5810428 7263035 14526070 29052140