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1553348680 = 235132987209
BaseRepresentation
bin101110010010110…
…0011100001001000
311000020220021210121
41130211203201020
511140124124210
6414045353024
753331150232
oct13445434110
94006807717
101553348680
11727908944
12374268774
131b9a80940
1410a42d252
15915866da
hex5c963848

1553348680 has 32 divisors (see below), whose sum is σ = 3763884600. Its totient is φ = 573543936.

The previous prime is 1553348659. The next prime is 1553348681. The reversal of 1553348680 is 868433551.

It can be written as a sum of positive squares in 4 ways, for example, as 1429293636 + 124055044 = 37806^2 + 11138^2 .

It is not an unprimeable number, because it can be changed into a prime (1553348681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1493085 + ... + 1494124.

Almost surely, 21553348680 is an apocalyptic number.

1553348680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1553348680 is an abundant number, since it is smaller than the sum of its proper divisors (2210535920).

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

1553348680 is a wasteful number, since it uses less digits than its factorization.

1553348680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987233 (or 2987229 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 1553348680 is about 39412.5447034317. The cubic root of 1553348680 is about 1158.1273490955.

The spelling of 1553348680 in words is "one billion, five hundred fifty-three million, three hundred forty-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 2987209 5974418 11948836 14936045 23897672 29872090 38833717 59744180 77667434 119488360 155334868 194168585 310669736 388337170 776674340 1553348680