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385538944 = 277430289
BaseRepresentation
bin10110111110101…
…101101110000000
3222212110102000011
4112332231232000
51242144221234
6102131234304
712361012150
oct2676555600
9885412004
10385538944
1118869912a
12a9148994
1361b4a36b
14392bc760
1523ca8b64
hex16fadb80

385538944 has 32 divisors (see below), whose sum is σ = 877791600. Its totient is φ = 165230592.

The previous prime is 385538939. The next prime is 385538947. The reversal of 385538944 is 449835583.

385538944 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385538947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214249 + ... + 216040.

Almost surely, 2385538944 is an apocalyptic number.

It is an amenable number.

385538944 is an abundant number, since it is smaller than the sum of its proper divisors (492252656).

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

385538944 is an equidigital number, since it uses as much as digits as its factorization.

385538944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430310 (or 430298 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 49.

The square root of 385538944 is about 19635.1456322585. The cubic root of 385538944 is about 727.8179313644.

The spelling of 385538944 in words is "three hundred eighty-five million, five hundred thirty-eight thousand, nine hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 448 896 430289 860578 1721156 3012023 3442312 6024046 6884624 12048092 13769248 24096184 27538496 48192368 55076992 96384736 192769472 385538944