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20029152 = 25311131459
BaseRepresentation
bin100110001100…
…1111011100000
31101200120211110
41030121323200
520111413102
61553143320
7332150013
oct114317340
941616743
1020029152
1110340220
12685ab40
1341c3790
14293537a
151b5986c
hex1319ee0

20029152 has 96 divisors (see below), whose sum is σ = 61810560. Its totient is φ = 5598720.

The previous prime is 20029147. The next prime is 20029157. The reversal of 20029152 is 25192002.

It is an interprime number because it is at equal distance from previous prime (20029147) and next prime (20029157).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20029157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12999 + ... + 14457.

It is an arithmetic number, because the mean of its divisors is an integer number (643860).

Almost surely, 220029152 is an apocalyptic number.

20029152 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 20029152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30905280).

20029152 is an abundant number, since it is smaller than the sum of its proper divisors (41781408).

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

20029152 is a wasteful number, since it uses less digits than its factorization.

20029152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496 (or 1488 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 20029152 is about 4475.3940608621. The cubic root of 20029152 is about 271.5735821370.

The spelling of 20029152 in words is "twenty million, twenty-nine thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 11 12 13 16 22 24 26 32 33 39 44 48 52 66 78 88 96 104 132 143 156 176 208 264 286 312 352 416 429 528 572 624 858 1056 1144 1248 1459 1716 2288 2918 3432 4377 4576 5836 6864 8754 11672 13728 16049 17508 18967 23344 32098 35016 37934 46688 48147 56901 64196 70032 75868 96294 113802 128392 140064 151736 192588 208637 227604 256784 303472 385176 417274 455208 513568 606944 625911 770352 834548 910416 1251822 1540704 1669096 1820832 2503644 3338192 5007288 6676384 10014576 20029152