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513288216 = 233271018429
BaseRepresentation
bin11110100110000…
…010100000011000
31022202211202001200
4132212002200120
52022400210331
6122533314200
715501610050
oct3646024030
91282752050
10513288216
11243813041
12123a95960
138245854c
144c254560
15300e05e6
hex1e982818

513288216 has 48 divisors (see below), whose sum is σ = 1588750800. Its totient is φ = 146653632.

The previous prime is 513288169. The next prime is 513288239. The reversal of 513288216 is 612882315.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 508711 + ... + 509718.

It is an arithmetic number, because the mean of its divisors is an integer number (33098975).

Almost surely, 2513288216 is an apocalyptic number.

513288216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

513288216 is an abundant number, since it is smaller than the sum of its proper divisors (1075462584).

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

513288216 is a wasteful number, since it uses less digits than its factorization.

513288216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018448 (or 1018441 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 513288216 is about 22655.8649360381. The cubic root of 513288216 is about 800.6703839082.

The spelling of 513288216 in words is "five hundred thirteen million, two hundred eighty-eight thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 504 1018429 2036858 3055287 4073716 6110574 7129003 8147432 9165861 12221148 14258006 18331722 21387009 24442296 28516012 36663444 42774018 57032024 64161027 73326888 85548036 128322054 171096072 256644108 513288216