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87438065042 = 2127934182199
BaseRepresentation
bin101000101101110110…
…1101111110110010010
322100200201010221001102
41101123231233312102
52413033121040132
6104100221104402
76213540201266
oct1213355576622
9270621127042
1087438065042
113409a565479
1214b429b8102
138326119233
1443369680a6
15241b4b9c62
hex145bb6fd92

87438065042 has 8 divisors (see below), whose sum is σ = 131259648000. Its totient is φ = 43684849044.

The previous prime is 87438064991. The next prime is 87438065111. The reversal of 87438065042 is 24056083478.

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

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, 17088542 + ... + 17093657.

It is an arithmetic number, because the mean of its divisors is an integer number (16407456000).

Almost surely, 287438065042 is an apocalyptic number.

87438065042 is a deficient number, since it is larger than the sum of its proper divisors (43821582958).

87438065042 is a wasteful number, since it uses less digits than its factorization.

87438065042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34183480.

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 87438065042 in words is "eighty-seven billion, four hundred thirty-eight million, sixty-five thousand, forty-two".

Divisors: 1 2 1279 2558 34182199 68364398 43719032521 87438065042