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29088972 = 2232111729149
BaseRepresentation
bin110111011110…
…1110011001100
32000201212120100
41232331303030
524421321342
62515251100
7502152333
oct156756314
960655510
1029088972
1115468a80
1298a9a90
136046413
143c12d1a
152848e4c
hex1bbdccc

29088972 has 144 divisors (see below), whose sum is σ = 88452000. Its totient is φ = 7956480.

The previous prime is 29088971. The next prime is 29088973. The reversal of 29088972 is 27988092.

It is an interprime number because it is at equal distance from previous prime (29088971) and next prime (29088973).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (29088971) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 195154 + ... + 195302.

It is an arithmetic number, because the mean of its divisors is an integer number (614250).

Almost surely, 229088972 is an apocalyptic number.

29088972 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 29088972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44226000).

29088972 is an abundant number, since it is smaller than the sum of its proper divisors (59363028).

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

29088972 is a wasteful number, since it uses less digits than its factorization.

29088972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 29088972 is about 5393.4193235831. The cubic root of 29088972 is about 307.5455573985.

The spelling of 29088972 in words is "twenty-nine million, eighty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 11 12 17 18 22 29 33 34 36 44 51 58 66 68 87 99 102 116 132 149 153 174 187 198 204 261 298 306 319 348 374 396 447 493 522 561 596 612 638 748 894 957 986 1044 1122 1276 1341 1479 1639 1683 1788 1914 1972 2244 2533 2682 2871 2958 3278 3366 3828 4321 4437 4917 5066 5364 5423 5742 5916 6556 6732 7599 8642 8874 9834 10132 10846 11484 12963 14751 15198 16269 17284 17748 19668 21692 22797 25926 27863 29502 30396 32538 38889 45594 47531 48807 51852 55726 59004 65076 73457 77778 83589 91188 95062 97614 111452 142593 146914 155556 167178 190124 195228 220371 250767 285186 293828 334356 427779 440742 501534 570372 661113 808027 855558 881484 1003068 1322226 1616054 1711116 2424081 2644452 3232108 4848162 7272243 9696324 14544486 29088972