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16264989620 = 22511157470903
BaseRepresentation
bin11110010010111100…
…00000101110110100
31112222112110002012222
433021132000232310
5231302314131440
611245543101512
71114030062545
oct171136005664
945875402188
1016264989620
116997187490
12319b141898
1316c2946619
14b042304cc
15652ddb2b5
hex3c9780bb4

16264989620 has 48 divisors (see below), whose sum is σ = 37499027328. Its totient is φ = 5876856960.

The previous prime is 16264989617. The next prime is 16264989647. The reversal of 16264989620 is 2698946261.

16264989620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200912 + ... + 269991.

It is an arithmetic number, because the mean of its divisors is an integer number (781229736).

Almost surely, 216264989620 is an apocalyptic number.

16264989620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16264989620 is an abundant number, since it is smaller than the sum of its proper divisors (21234037708).

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

16264989620 is a wasteful number, since it uses less digits than its factorization.

16264989620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471080 (or 471078 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 53.

The spelling of 16264989620 in words is "sixteen billion, two hundred sixty-four million, nine hundred eighty-nine thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 157 220 314 628 785 1570 1727 3140 3454 6908 8635 17270 34540 470903 941806 1883612 2354515 4709030 5179933 9418060 10359866 20719732 25899665 51799330 73931771 103598660 147863542 295727084 369658855 739317710 813249481 1478635420 1626498962 3252997924 4066247405 8132494810 16264989620