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2148989355 = 32547755319
BaseRepresentation
bin1000000000010110…
…1111100110101011
312112202200222012100
42000011233212223
513400120124410
6553124144443
7104153052042
oct20005574653
95482628170
102148989355
11a03059567
124bb838123
132832b1246
1416559d559
15c89e28c0
hex8016f9ab

2148989355 has 12 divisors (see below), whose sum is σ = 3724914960. Its totient is φ = 1146127632.

The previous prime is 2148989321. The next prime is 2148989377. The reversal of 2148989355 is 5539898412.

2148989355 is a `hidden beast` number, since 21 + 489 + 8 + 93 + 55 = 666.

It is not a de Polignac number, because 2148989355 - 221 = 2146892203 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23877615 + ... + 23877704.

It is an arithmetic number, because the mean of its divisors is an integer number (310409580).

Almost surely, 22148989355 is an apocalyptic number.

2148989355 is a deficient number, since it is larger than the sum of its proper divisors (1575925605).

2148989355 is a wasteful number, since it uses less digits than its factorization.

2148989355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47755330 (or 47755327 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The square root of 2148989355 is about 46357.1931311636. The cubic root of 2148989355 is about 1290.4606161119.

The spelling of 2148989355 in words is "two billion, one hundred forty-eight million, nine hundred eighty-nine thousand, three hundred fifty-five".

Divisors: 1 3 5 9 15 45 47755319 143265957 238776595 429797871 716329785 2148989355