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2111247076 = 221721306689
BaseRepresentation
bin111110111010111…
…0001001011100100
312110010200110112011
41331311301023210
513310434401301
6545255204004
7103214206201
oct17565611344
95403613464
102111247076
119938201a4
124ab076604
13278528233
14160576ca8
15c5539a51
hex7dd712e4

2111247076 has 12 divisors (see below), whose sum is σ = 3696841260. Its totient is φ = 1055006720.

The previous prime is 2111247043. The next prime is 2111247107. The reversal of 2111247076 is 6707421112.

It can be written as a sum of positive squares in 2 ways, for example, as 555733476 + 1555513600 = 23574^2 + 39440^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146461 + ... + 160228.

It is an arithmetic number, because the mean of its divisors is an integer number (308070105).

Almost surely, 22111247076 is an apocalyptic number.

It is an amenable number.

2111247076 is a deficient number, since it is larger than the sum of its proper divisors (1585594184).

2111247076 is a wasteful number, since it uses less digits than its factorization.

2111247076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308414 (or 308412 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 2111247076 is about 45948.3087392779. The cubic root of 2111247076 is about 1282.8612498885.

Adding to 2111247076 its reverse (6707421112), we get a palindrome (8818668188).

The spelling of 2111247076 in words is "two billion, one hundred eleven million, two hundred forty-seven thousand, seventy-six".

Divisors: 1 2 4 1721 3442 6884 306689 613378 1226756 527811769 1055623538 2111247076