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29381408 = 257294523
BaseRepresentation
bin111000000010…
…1001100100000
32001021201201022
41300011030200
530010201113
62525425012
7504511040
oct160051440
961251638
1029381408
1115648761
129a0b168
136119564
143c8b720
1528a5908
hex1c05320

29381408 has 48 divisors (see below), whose sum is σ = 68402880. Its totient is φ = 12155136.

The previous prime is 29381399. The next prime is 29381413. The reversal of 29381408 is 80418392.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4235 + ... + 8757.

It is an arithmetic number, because the mean of its divisors is an integer number (1425060).

Almost surely, 229381408 is an apocalyptic number.

29381408 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 29381408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34201440).

29381408 is an abundant number, since it is smaller than the sum of its proper divisors (39021472).

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

29381408 is a wasteful number, since it uses less digits than its factorization.

29381408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569 (or 4561 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 29381408 is about 5420.4619729318. The cubic root of 29381408 is about 308.5727242091.

The spelling of 29381408 in words is "twenty-nine million, three hundred eighty-one thousand, four hundred eight".

Divisors: 1 2 4 7 8 14 16 28 29 32 56 58 112 116 203 224 232 406 464 812 928 1624 3248 4523 6496 9046 18092 31661 36184 63322 72368 126644 131167 144736 253288 262334 506576 524668 918169 1013152 1049336 1836338 2098672 3672676 4197344 7345352 14690704 29381408