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29013880 = 23572113131
BaseRepresentation
bin110111010101…
…1011101111000
32000121001120011
41232223131320
524411421010
62513511304
7501420400
oct156533570
960531504
1029013880
1115417615
129872534
13601b19c
143bd3800
152831a8a
hex1bab778

29013880 has 96 divisors (see below), whose sum is σ = 77196240. Its totient is φ = 9784320.

The previous prime is 29013877. The next prime is 29013889. The reversal of 29013880 is 8831092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29013889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221415 + ... + 221545.

Almost surely, 229013880 is an apocalyptic number.

29013880 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 29013880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38598120).

29013880 is an abundant number, since it is smaller than the sum of its proper divisors (48182360).

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

29013880 is a wasteful number, since it uses less digits than its factorization.

29013880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 29013880 is about 5386.4533786157. The cubic root of 29013880 is about 307.2806905639.

The spelling of 29013880 in words is "twenty-nine million, thirteen thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 113 131 140 196 226 245 262 280 392 452 490 524 565 655 791 904 917 980 1048 1130 1310 1582 1834 1960 2260 2620 3164 3668 3955 4520 4585 5240 5537 6328 6419 7336 7910 9170 11074 12838 14803 15820 18340 22148 25676 27685 29606 31640 32095 36680 44296 51352 55370 59212 64190 74015 103621 110740 118424 128380 148030 207242 221480 256760 296060 414484 518105 592120 725347 828968 1036210 1450694 2072420 2901388 3626735 4144840 5802776 7253470 14506940 29013880