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29974120 = 235113563
BaseRepresentation
bin111001001010…
…1111001101000
32002101211202121
41302111321220
530133132440
62550241024
7512530051
oct162257150
962354677
1029974120
1115a13000
12a056174
136296287
143da3728
15297134a
hex1c95e68

29974120 has 64 divisors (see below), whose sum is σ = 74312640. Its totient is φ = 10880320.

The previous prime is 29974103. The next prime is 29974121. The reversal of 29974120 is 2147992.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (29974121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52959 + ... + 53521.

It is an arithmetic number, because the mean of its divisors is an integer number (1161135).

Almost surely, 229974120 is an apocalyptic number.

29974120 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 29974120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37156320).

29974120 is an abundant number, since it is smaller than the sum of its proper divisors (44338520).

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

29974120 is a wasteful number, since it uses less digits than its factorization.

29974120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 29974120 is about 5474.8625553524. The cubic root of 29974120 is about 310.6338746930.

It can be divided in two parts, 2997 and 4120, that added together give a palindrome (7117).

The spelling of 29974120 in words is "twenty-nine million, nine hundred seventy-four thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 121 220 242 440 484 563 605 968 1126 1210 1331 2252 2420 2662 2815 4504 4840 5324 5630 6193 6655 10648 11260 12386 13310 22520 24772 26620 30965 49544 53240 61930 68123 123860 136246 247720 272492 340615 544984 681230 749353 1362460 1498706 2724920 2997412 3746765 5994824 7493530 14987060 29974120