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385723432 = 23232972287
BaseRepresentation
bin10110111111011…
…010110000101000
3222212210210002001
4112333122300220
51242221122212
6102135220344
712362411053
oct2677326050
9885723061
10385723432
111888047a6
12a92176b4
1361bb3323
1439329a9a
1523ce3657
hex16fdac28

385723432 has 32 divisors (see below), whose sum is σ = 780710400. Its totient is φ = 178112704.

The previous prime is 385723417. The next prime is 385723433. The reversal of 385723432 is 234327583.

It is a junction number, because it is equal to n+sod(n) for n = 385723391 and 385723400.

It is not an unprimeable number, because it can be changed into a prime (385723433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30808 + ... + 41479.

It is an arithmetic number, because the mean of its divisors is an integer number (24397200).

Almost surely, 2385723432 is an apocalyptic number.

It is an amenable number.

385723432 is an abundant number, since it is smaller than the sum of its proper divisors (394986968).

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

385723432 is a wasteful number, since it uses less digits than its factorization.

385723432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72345 (or 72341 counting only the distinct ones).

The product of its digits is 120960, while the sum is 37.

The square root of 385723432 is about 19639.8429728957. The cubic root of 385723432 is about 727.9340046040.

The spelling of 385723432 in words is "three hundred eighty-five million, seven hundred twenty-three thousand, four hundred thirty-two".

Divisors: 1 2 4 8 23 29 46 58 92 116 184 232 667 1334 2668 5336 72287 144574 289148 578296 1662601 2096323 3325202 4192646 6650404 8385292 13300808 16770584 48215429 96430858 192861716 385723432