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534870385 = 5718184431
BaseRepresentation
bin11111111000010…
…111100101110001
31101021110020020021
4133320113211301
52043411323020
6125024043441
716153215610
oct3770274561
91337406207
10534870385
11254a14045
1212b163581
1386a73b6a
1451071877
1531e551aa
hex1fe17971

534870385 has 16 divisors (see below), whose sum is σ = 737597952. Its totient is φ = 364737600.

The previous prime is 534870383. The next prime is 534870389. The reversal of 534870385 is 583078435.

It is not a de Polignac number, because 534870385 - 21 = 534870383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (534870383) 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, 35881 + ... + 48550.

It is an arithmetic number, because the mean of its divisors is an integer number (46099872).

Almost surely, 2534870385 is an apocalyptic number.

It is an amenable number.

534870385 is a deficient number, since it is larger than the sum of its proper divisors (202727567).

534870385 is a wasteful number, since it uses less digits than its factorization.

534870385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84624.

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 534870385 is about 23127.2649701602. The cubic root of 534870385 is about 811.7385737605.

The spelling of 534870385 in words is "five hundred thirty-four million, eight hundred seventy thousand, three hundred eighty-five".

Divisors: 1 5 7 35 181 905 1267 6335 84431 422155 591017 2955085 15282011 76410055 106974077 534870385