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20245111344 = 2432197399529
BaseRepresentation
bin10010110110101100…
…111110001000110000
31221020220202012210200
4102312230332020300
5312430222030334
613144522555200
71314456415143
oct226654761060
957226665720
1020245111344
118649923887
123b10068b00
131ba83c8133
14da0a8c05a
157d7536799
hex4b6b3e230

20245111344 has 60 divisors (see below), whose sum is σ = 59640211800. Its totient is φ = 6393192192.

The previous prime is 20245111333. The next prime is 20245111361. The reversal of 20245111344 is 44311154202.

20245111344 is a `hidden beast` number, since 202 + 4 + 5 + 111 + 344 = 666.

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 11 ways as a sum of consecutive naturals, for example, 3697029 + ... + 3702500.

It is an arithmetic number, because the mean of its divisors is an integer number (994003530).

Almost surely, 220245111344 is an apocalyptic number.

20245111344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20245111344 is an abundant number, since it is smaller than the sum of its proper divisors (39395100456).

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

20245111344 is a wasteful number, since it uses less digits than its factorization.

20245111344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7399562 (or 7399553 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 20245111344 its reverse (44311154202), we get a palindrome (64556265546).

The spelling of 20245111344 in words is "twenty billion, two hundred forty-five million, one hundred eleven thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 36 38 48 57 72 76 114 144 152 171 228 304 342 456 684 912 1368 2736 7399529 14799058 22198587 29598116 44397174 59196232 66595761 88794348 118392464 133191522 140591051 177588696 266383044 281182102 355177392 421773153 532766088 562364204 843546306 1065532176 1124728408 1265319459 1687092612 2249456816 2530638918 3374185224 5061277836 6748370448 10122555672 20245111344