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2112910090 = 25316815839
BaseRepresentation
bin111110111110000…
…0111001100001010
312110020210221202021
41331330013030022
513311401110330
6545354555054
7103234303504
oct17574071412
95406727667
102112910090
11994756695
124ab738a8a
1327898b175
1416088ad74
15c576767a
hex7df0730a

2112910090 has 16 divisors (see below), whose sum is σ = 3925923840. Its totient is φ = 817900560.

The previous prime is 2112910003. The next prime is 2112910091. The reversal of 2112910090 is 900192112.

It is not an unprimeable number, because it can be changed into a prime (2112910091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3407610 + ... + 3408229.

It is an arithmetic number, because the mean of its divisors is an integer number (245370240).

Almost surely, 22112910090 is an apocalyptic number.

2112910090 is a deficient number, since it is larger than the sum of its proper divisors (1813013750).

2112910090 is a wasteful number, since it uses less digits than its factorization.

2112910090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6815877.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 2112910090 is about 45966.4017517143. The cubic root of 2112910090 is about 1283.1979949856.

The spelling of 2112910090 in words is "two billion, one hundred twelve million, nine hundred ten thousand, ninety".

Divisors: 1 2 5 10 31 62 155 310 6815839 13631678 34079195 68158390 211291009 422582018 1056455045 2112910090