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29284668 = 22327791471
BaseRepresentation
bin110111110110…
…1100100111100
32001002211000100
41233231210330
524444102133
62523401100
7503626020
oct157554474
961084010
1029284668
1115592006
129983190
1360b450a
143c64380
152886e13
hex1bed93c

29284668 has 72 divisors (see below), whose sum is σ = 85729280. Its totient is φ = 8255520.

The previous prime is 29284667. The next prime is 29284669. The reversal of 29284668 is 86648292.

It is an interprime number because it is at equal distance from previous prime (29284667) and next prime (29284669).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29284663) 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, 19173 + ... + 20643.

Almost surely, 229284668 is an apocalyptic number.

29284668 is a gapful number since it is divisible by the number (28) 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 29284668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42864640).

29284668 is an abundant number, since it is smaller than the sum of its proper divisors (56444612).

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

29284668 is a wasteful number, since it uses less digits than its factorization.

29284668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567 (or 1562 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 29284668 is about 5411.5310218089. The cubic root of 29284668 is about 308.2336872710.

The spelling of 29284668 in words is "twenty-nine million, two hundred eighty-four thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 79 84 126 158 237 252 316 474 553 711 948 1106 1422 1471 1659 2212 2844 2942 3318 4413 4977 5884 6636 8826 9954 10297 13239 17652 19908 20594 26478 30891 41188 52956 61782 92673 116209 123564 185346 232418 348627 370692 464836 697254 813463 1045881 1394508 1626926 2091762 2440389 3253852 4183524 4880778 7321167 9761556 14642334 29284668