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51442603195 = 587509117571
BaseRepresentation
bin101111111010001101…
…111101010010111011
311220210010100000011211
4233322031331102323
51320323301300240
635344333303551
73500536624654
oct577215752273
9156703300154
1051442603195
111a8a90101a5
129b78034bb7
134b0a8b6b99
1426c017252b
151511352bea
hexbfa37d4bb

51442603195 has 8 divisors (see below), whose sum is σ = 61732354320. Its totient is φ = 41153262240.

The previous prime is 51442603193. The next prime is 51442603237. The reversal of 51442603195 is 59130624415.

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

It is not a de Polignac number, because 51442603195 - 21 = 51442603193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51442603193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378760 + ... + 496330.

It is an arithmetic number, because the mean of its divisors is an integer number (7716544290).

Almost surely, 251442603195 is an apocalyptic number.

51442603195 is a deficient number, since it is larger than the sum of its proper divisors (10289751125).

51442603195 is a wasteful number, since it uses less digits than its factorization.

51442603195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205085.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 51442603195 in words is "fifty-one billion, four hundred forty-two million, six hundred three thousand, one hundred ninety-five".

Divisors: 1 5 87509 117571 437545 587855 10288520639 51442603195