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385220088 = 233211486389
BaseRepresentation
bin10110111101011…
…111110111111000
3222211212012121200
4112331133313320
51242104020323
6102120334200
712355213431
oct2675376770
9884765550
10385220088
111884a0610
12a9014360
1361a681a6
1439238488
1523c44443
hex16f5fdf8

385220088 has 48 divisors (see below), whose sum is σ = 1138152600. Its totient is φ = 116733120.

The previous prime is 385220081. The next prime is 385220093. The reversal of 385220088 is 880022583.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385220081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242403 + ... + 243986.

Almost surely, 2385220088 is an apocalyptic number.

It is an amenable number.

385220088 is an abundant number, since it is smaller than the sum of its proper divisors (752932512).

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

385220088 is a wasteful number, since it uses less digits than its factorization.

385220088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486412 (or 486405 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 385220088 is about 19627.0244306161. The cubic root of 385220088 is about 727.6172312586.

The spelling of 385220088 in words is "three hundred eighty-five million, two hundred twenty thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 132 198 264 396 792 486389 972778 1459167 1945556 2918334 3891112 4377501 5350279 5836668 8755002 10700558 11673336 16050837 17510004 21401116 32101674 35020008 42802232 48152511 64203348 96305022 128406696 192610044 385220088