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807904657142 = 21136722938961
BaseRepresentation
bin10111100000110101101…
…11101011111011110110
32212020100021010221001222
423300122313223323312
5101214042043012032
61415051332350342
7112240426164452
oct13603267537366
92766307127058
10807904657142
112916a31316a0
121106b17753b2
135b2538199ab
142b1620d1662
1516037257a12
hexbc1adebef6

807904657142 has 8 divisors (see below), whose sum is σ = 1322025802632. Its totient is φ = 367229389600.

The previous prime is 807904657073. The next prime is 807904657151. The reversal of 807904657142 is 241756409708.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18361469459 + ... + 18361469502.

It is an arithmetic number, because the mean of its divisors is an integer number (165253225329).

Almost surely, 2807904657142 is an apocalyptic number.

807904657142 is a deficient number, since it is larger than the sum of its proper divisors (514121145490).

807904657142 is a wasteful number, since it uses less digits than its factorization.

807904657142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36722938974.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 807904657142 in words is "eight hundred seven billion, nine hundred four million, six hundred fifty-seven thousand, one hundred forty-two".

Divisors: 1 2 11 22 36722938961 73445877922 403952328571 807904657142