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6909808452 = 2232931965247
BaseRepresentation
bin1100110111101101…
…10100111101000100
3122211120000122020120
412123312310331010
5103122402332302
63101353101540
7333142255101
oct63366647504
918746018216
106909808452
112a264523a8
12140a0b78b0
13861717a71
1449799daa8
152a69509bc
hex19bdb4f44

6909808452 has 24 divisors (see below), whose sum is σ = 16177921536. Its totient is φ = 2295407328.

The previous prime is 6909808441. The next prime is 6909808463. The reversal of 6909808452 is 2548089096.

It is an interprime number because it is at equal distance from previous prime (6909808441) and next prime (6909808463).

It is a junction number, because it is equal to n+sod(n) for n = 6909808395 and 6909808404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 979108 + ... + 986139.

It is an arithmetic number, because the mean of its divisors is an integer number (674080064).

Almost surely, 26909808452 is an apocalyptic number.

It is an amenable number.

6909808452 is an abundant number, since it is smaller than the sum of its proper divisors (9268113084).

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

6909808452 is a wasteful number, since it uses less digits than its factorization.

6909808452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965547 (or 1965545 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 6909808452 is about 83125.2576056159. The cubic root of 6909808452 is about 1904.6799178398.

The spelling of 6909808452 in words is "six billion, nine hundred nine million, eight hundred eight thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 293 586 879 1172 1758 3516 1965247 3930494 5895741 7860988 11791482 23582964 575817371 1151634742 1727452113 2303269484 3454904226 6909808452