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2171005096 = 23133149829
BaseRepresentation
bin1000000101100110…
…1110100010101000
312121022010111010011
42001121232202220
513421234130341
6555232101304
7104541144631
oct20131564250
95538114104
102171005096
11a14526297
12507094834
13287a1c000
14168490888
15ca8e0b81
hex8166e8a8

2171005096 has 64 divisors (see below), whose sum is σ = 4444650000. Its totient is φ = 994076928.

The previous prime is 2171005093. The next prime is 2171005099. The reversal of 2171005096 is 6905001712.

It is an interprime number because it is at equal distance from previous prime (2171005093) and next prime (2171005099).

It can be written as a sum of positive squares in 8 ways, for example, as 288660100 + 1882344996 = 16990^2 + 43386^2 .

It is not an unprimeable number, because it can be changed into a prime (2171005093) 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 15 ways as a sum of consecutive naturals, for example, 2618410 + ... + 2619238.

Almost surely, 22171005096 is an apocalyptic number.

2171005096 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2171005096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2222325000).

2171005096 is an abundant number, since it is smaller than the sum of its proper divisors (2273644904).

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

2171005096 is a wasteful number, since it uses less digits than its factorization.

2171005096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 2171005096 is about 46594.0457140180. The cubic root of 2171005096 is about 1294.8524443417.

The spelling of 2171005096 in words is "two billion, one hundred seventy-one million, five thousand, ninety-six".

Divisors: 1 2 4 8 13 26 52 104 149 169 298 338 596 676 829 1192 1352 1658 1937 2197 3316 3874 4394 6632 7748 8788 10777 15496 17576 21554 25181 43108 50362 86216 100724 123521 140101 201448 247042 280202 327353 494084 560404 654706 988168 1120808 1309412 1605773 1821313 2618824 3211546 3642626 6423092 7285252 12846184 14570504 20875049 41750098 83500196 167000392 271375637 542751274 1085502548 2171005096