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1940108351 = 23285129587
BaseRepresentation
bin111001110100011…
…1011010000111111
312000012122201022212
41303220323100333
512433131431401
6520303131035
766035435366
oct16350732077
95005581285
101940108351
11906160135
124618a3a7b
1324bc3780c
141459487dd
15b54d1dbb
hex73a3b43f

1940108351 has 8 divisors (see below), whose sum is σ = 2025239424. Its totient is φ = 1855042200.

The previous prime is 1940108329. The next prime is 1940108353. The reversal of 1940108351 is 1538010491.

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

It is a cyclic number.

It is not a de Polignac number, because 1940108351 - 210 = 1940107327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940108353) 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, 50780 + ... + 80366.

It is an arithmetic number, because the mean of its divisors is an integer number (253154928).

Almost surely, 21940108351 is an apocalyptic number.

1940108351 is a deficient number, since it is larger than the sum of its proper divisors (85131073).

1940108351 is a wasteful number, since it uses less digits than its factorization.

1940108351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32461.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 1940108351 is about 44046.6610652839. The cubic root of 1940108351 is about 1247.2169230649.

The spelling of 1940108351 in words is "one billion, nine hundred forty million, one hundred eight thousand, three hundred fifty-one".

Divisors: 1 23 2851 29587 65573 680501 84352537 1940108351