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2147307677 = 16229132313
BaseRepresentation
bin111111111111101…
…0101000010011101
312112122112112100222
41333333111002131
513344202321202
6553024131125
7104132546144
oct17777250235
95478475328
102147307677
11a02110049
124bb166aa5
13282b42978
1416528275b
15c87ae4a2
hex7ffd509d

2147307677 has 4 divisors (see below), whose sum is σ = 2147456220. Its totient is φ = 2147159136.

The previous prime is 2147307671. The next prime is 2147307733. The reversal of 2147307677 is 7767037412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1425364516 + 721943161 = 37754^2 + 26869^2 .

It is a cyclic number.

It is not a de Polignac number, because 2147307677 - 212 = 2147303581 is a prime.

It is a super-2 number, since 2×21473076772 = 9221860519406272658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147307671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49928 + ... + 82385.

It is an arithmetic number, because the mean of its divisors is an integer number (536864055).

Almost surely, 22147307677 is an apocalyptic number.

It is an amenable number.

2147307677 is a deficient number, since it is larger than the sum of its proper divisors (148543).

2147307677 is a wasteful number, since it uses less digits than its factorization.

2147307677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148542.

The product of its (nonzero) digits is 345744, while the sum is 44.

The square root of 2147307677 is about 46339.0513174364. The cubic root of 2147307677 is about 1290.1239143431.

The spelling of 2147307677 in words is "two billion, one hundred forty-seven million, three hundred seven thousand, six hundred seventy-seven".

Divisors: 1 16229 132313 2147307677