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2131353842 = 21956088259
BaseRepresentation
bin111111100001001…
…1110000011110010
312111112111222211012
41333002132003302
513331111310332
6551254150522
7103550131412
oct17702360362
95445458735
102131353842
119a4103762
124b5952442
1327c748127
141630cc642
15c71ac3b2
hex7f09e0f2

2131353842 has 8 divisors (see below), whose sum is σ = 3365295600. Its totient is φ = 1009588644.

The previous prime is 2131353839. The next prime is 2131353863. The reversal of 2131353842 is 2483531312.

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

It is a junction number, because it is equal to n+sod(n) for n = 2131353799 and 2131353808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28044092 + ... + 28044167.

It is an arithmetic number, because the mean of its divisors is an integer number (420661950).

Almost surely, 22131353842 is an apocalyptic number.

2131353842 is a deficient number, since it is larger than the sum of its proper divisors (1233941758).

2131353842 is a wasteful number, since it uses less digits than its factorization.

2131353842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56088280.

The product of its digits is 17280, while the sum is 32.

The square root of 2131353842 is about 46166.5879397644. The cubic root of 2131353842 is about 1286.9208942048.

The spelling of 2131353842 in words is "two billion, one hundred thirty-one million, three hundred fifty-three thousand, eight hundred forty-two".

Divisors: 1 2 19 38 56088259 112176518 1065676921 2131353842