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385473033 = 33115692281
BaseRepresentation
bin10110111110011…
…101101000001001
3222212100001121000
4112332131220021
51242140114113
6102130005213
712360316041
oct2676355011
9885301530
10385473033
11188653660
12a9116809
1361b2636a
14392a2721
1523c94373
hex16f9da09

385473033 has 32 divisors (see below), whose sum is σ = 624355200. Its totient is φ = 233107200.

The previous prime is 385472981. The next prime is 385473037. The reversal of 385473033 is 330374583.

It is a happy number.

It is not a de Polignac number, because 385473033 - 220 = 384424457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (385473037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167853 + ... + 170133.

It is an arithmetic number, because the mean of its divisors is an integer number (19511100).

Almost surely, 2385473033 is an apocalyptic number.

385473033 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

385473033 is a deficient number, since it is larger than the sum of its proper divisors (238882167).

385473033 is a wasteful number, since it uses less digits than its factorization.

385473033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870 (or 2864 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 385473033 is about 19633.4671670594. The cubic root of 385473033 is about 727.7764535471.

The spelling of 385473033 in words is "three hundred eighty-five million, four hundred seventy-three thousand, thirty-three".

Divisors: 1 3 9 11 27 33 99 297 569 1707 2281 5121 6259 6843 15363 18777 20529 25091 56331 61587 75273 168993 225819 677457 1297889 3893667 11681001 14276779 35043003 42830337 128491011 385473033