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10993388620 = 225549669431
BaseRepresentation
bin10100011110100000…
…11100110001001100
31001101011000000010111
422033100130301030
5140003301413440
65014510245404
7536266155454
oct121720346114
931334000114
1010993388620
114731532645
1221697b6864
1310627512a6
1476406cd64
154451d54ea
hex28f41cc4c

10993388620 has 12 divisors (see below), whose sum is σ = 23086116144. Its totient is φ = 4397355440.

The previous prime is 10993388603. The next prime is 10993388629. The reversal of 10993388620 is 2688339901.

It is not an unprimeable number, because it can be changed into a prime (10993388629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274834696 + ... + 274834735.

It is an arithmetic number, because the mean of its divisors is an integer number (1923843012).

Almost surely, 210993388620 is an apocalyptic number.

10993388620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10993388620 is an abundant number, since it is smaller than the sum of its proper divisors (12092727524).

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

10993388620 is a wasteful number, since it uses less digits than its factorization.

10993388620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549669440 (or 549669438 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 10993388620 in words is "ten billion, nine hundred ninety-three million, three hundred eighty-eight thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 549669431 1099338862 2198677724 2748347155 5496694310 10993388620