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1385201084 = 221375925169
BaseRepresentation
bin101001010010000…
…0111110110111100
310120112111111122212
41102210013312330
510314102413314
6345241355552
746220005061
oct12244076674
93515444585
101385201084
11650a01093
12327a98bb8
13190c99817
14d1d7cc68
158191ee3e
hex52907dbc

1385201084 has 12 divisors (see below), whose sum is σ = 2424374400. Its totient is φ = 692522688.

The previous prime is 1385201071. The next prime is 1385201101. The reversal of 1385201084 is 4801025831.

It is a super-2 number, since 2×13852010842 = 3837564086229550112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1385201084.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42452 + ... + 67620.

It is an arithmetic number, because the mean of its divisors is an integer number (202031200).

Almost surely, 21385201084 is an apocalyptic number.

It is an amenable number.

1385201084 is a deficient number, since it is larger than the sum of its proper divisors (1039173316).

1385201084 is a wasteful number, since it uses less digits than its factorization.

1385201084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38932 (or 38930 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 1385201084 is about 37218.2896436685. The cubic root of 1385201084 is about 1114.7332129307.

The spelling of 1385201084 in words is "one billion, three hundred eighty-five million, two hundred one thousand, eighty-four".

Divisors: 1 2 4 13759 25169 27518 50338 55036 100676 346300271 692600542 1385201084