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2071681942 = 2116713710259
BaseRepresentation
bin111101101111011…
…0101101110010110
312100101020100100211
41323132311232112
513220322310232
6541323200034
7102224002021
oct17336655626
95311210324
102071681942
11973457340
1249997601a
13270284605
141591d81b8
15c1d21a47
hex7b7b5b96

2071681942 has 32 divisors (see below), whose sum is σ = 3466074240. Its totient is φ = 920758080.

The previous prime is 2071681877. The next prime is 2071681943. The reversal of 2071681942 is 2491861702.

It is a junction number, because it is equal to n+sod(n) for n = 2071681895 and 2071681904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071681943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196809 + ... + 207067.

It is an arithmetic number, because the mean of its divisors is an integer number (108314820).

Almost surely, 22071681942 is an apocalyptic number.

2071681942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2071681942 is a deficient number, since it is larger than the sum of its proper divisors (1394392298).

2071681942 is a wasteful number, since it uses less digits than its factorization.

2071681942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10476.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 2071681942 is about 45515.7329063259. The cubic root of 2071681942 is about 1274.7969825671.

The spelling of 2071681942 in words is "two billion, seventy-one million, six hundred eighty-one thousand, nine hundred forty-two".