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2071349731 = 11283665387
BaseRepresentation
bin111101101110110…
…0100100111100011
312100100121110122201
41323131210213203
513220231142411
6541312114031
7102221116333
oct17335444743
95310543581
102071349731
1197324a790
12499835917
13270199339
1415914d0c3
15c1ca83c1
hex7b7649e3

2071349731 has 8 divisors (see below), whose sum is σ = 2267642304. Its totient is φ = 1876388520.

The previous prime is 2071349711. The next prime is 2071349741. The reversal of 2071349731 is 1379431702.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2071349731 is a prime.

It is a super-2 number, since 2×20713497312 = 8580979416227544722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2071349711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329581 + ... + 335806.

It is an arithmetic number, because the mean of its divisors is an integer number (283455288).

Almost surely, 22071349731 is an apocalyptic number.

2071349731 is a deficient number, since it is larger than the sum of its proper divisors (196292573).

2071349731 is a wasteful number, since it uses less digits than its factorization.

2071349731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665681.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 2071349731 is about 45512.0833515672. The cubic root of 2071349731 is about 1274.7288375797.

The spelling of 2071349731 in words is "two billion, seventy-one million, three hundred forty-nine thousand, seven hundred thirty-one".

Divisors: 1 11 283 3113 665387 7319257 188304521 2071349731