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6641608148 = 2272336531559
BaseRepresentation
bin1100010111101111…
…01110010111010100
3122010212100122120222
412023313232113110
5102100222430043
63015012413512
7323404511030
oct61367562724
918125318528
106641608148
1128a901855a
121354317298
1381aca2166
144701071c0
1528d123d68
hex18bdee5d4

6641608148 has 48 divisors (see below), whose sum is σ = 13369224960. Its totient is φ = 2828031744.

The previous prime is 6641608147. The next prime is 6641608157. The reversal of 6641608148 is 8418061466.

It is a super-2 number, since 2×66416081482 = 88221917583159979808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6641608099 and 6641608108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6641608147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4259393 + ... + 4260951.

It is an arithmetic number, because the mean of its divisors is an integer number (278525520).

Almost surely, 26641608148 is an apocalyptic number.

It is an amenable number.

6641608148 is an abundant number, since it is smaller than the sum of its proper divisors (6727616812).

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

6641608148 is a wasteful number, since it uses less digits than its factorization.

6641608148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456 (or 2454 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 6641608148 is about 81496.0621625364. The cubic root of 6641608148 is about 1879.7110001666.

The spelling of 6641608148 in words is "six billion, six hundred forty-one million, six hundred eight thousand, one hundred forty-eight".

Divisors: 1 2 4 7 14 28 233 466 653 932 1306 1559 1631 2612 3118 3262 4571 6236 6524 9142 10913 18284 21826 43652 152149 304298 363247 608596 726494 1018027 1065043 1452988 2036054 2130086 2542729 4072108 4260172 5085458 7126189 10170916 14252378 28504756 237200291 474400582 948801164 1660402037 3320804074 6641608148