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6993093780 = 2232538850521
BaseRepresentation
bin1101000001101001…
…00010010010010100
3200001100201222020100
412200310202102110
5103310213000110
63113530134100
7335203213341
oct64064422224
920040658210
106993093780
112a69467952
121431b81330
13875a5861a
144a4a7d7c8
152ade02bc0
hex1a0d22494

6993093780 has 36 divisors (see below), whose sum is σ = 21212385012. Its totient is φ = 1864824960.

The previous prime is 6993093733. The next prime is 6993093799. The reversal of 6993093780 is 873903996.

It can be written as a sum of positive squares in 2 ways, for example, as 4681022724 + 2312071056 = 68418^2 + 48084^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19425081 + ... + 19425440.

It is an arithmetic number, because the mean of its divisors is an integer number (589232917).

Almost surely, 26993093780 is an apocalyptic number.

6993093780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6993093780 is an abundant number, since it is smaller than the sum of its proper divisors (14219291232).

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

6993093780 is a wasteful number, since it uses less digits than its factorization.

6993093780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38850536 (or 38850531 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 6993093780 is about 83624.7199098448. The cubic root of 6993093780 is about 1912.3018746444.

The spelling of 6993093780 in words is "six billion, nine hundred ninety-three million, ninety-three thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 38850521 77701042 116551563 155402084 194252605 233103126 349654689 388505210 466206252 582757815 699309378 777010420 1165515630 1398618756 1748273445 2331031260 3496546890 6993093780