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9920648948 = 2272647133853
BaseRepresentation
bin10010011110101000…
…10001011011110100
3221121101110011221112
421033110101123310
5130304141231243
64320225534152
7500562060530
oct111724213364
927541404845
109920648948
114230a47431
121b0a4a4358
13c214265a2
146a17c8bc0
153d0e36818
hex24f5116f4

9920648948 has 24 divisors (see below), whose sum is σ = 19848941952. Its totient is φ = 4250068704.

The previous prime is 9920648921. The next prime is 9920648971. The reversal of 9920648948 is 8498460299.

9920648948 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 7 ways as a sum of consecutive naturals, for example, 7190 + ... + 141042.

It is an arithmetic number, because the mean of its divisors is an integer number (827039248).

Almost surely, 29920648948 is an apocalyptic number.

It is an amenable number.

9920648948 is an abundant number, since it is smaller than the sum of its proper divisors (9928293004).

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

9920648948 is a wasteful number, since it uses less digits than its factorization.

9920648948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136511 (or 136509 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 59.

The square root of 9920648948 is about 99602.4545279884. The cubic root of 9920648948 is about 2148.7209950486.

The spelling of 9920648948 in words is "nine billion, nine hundred twenty million, six hundred forty-eight thousand, nine hundred forty-eight".

Divisors: 1 2 4 7 14 28 2647 5294 10588 18529 37058 74116 133853 267706 535412 936971 1873942 3747884 354308891 708617782 1417235564 2480162237 4960324474 9920648948