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542704371987 = 3431494384913
BaseRepresentation
bin1111110010110111011…
…00111000100100010011
31220212211000000120200110
413321123230320210103
532342424304400422
61053152010052403
754131502022521
oct7713354704423
91825730016613
10542704371987
1119a183519208
128921a71a103
133c23b587a3b
141c3a4a41311
15e1b4c6560c
hex7e5bb38913

542704371987 has 16 divisors (see below), whose sum is σ = 725440002048. Its totient is φ = 360886189440.

The previous prime is 542704371961. The next prime is 542704371991. The reversal of 542704371987 is 789173407245.

It is not a de Polignac number, because 542704371987 - 220 = 542703323411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542704371907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6348843 + ... + 6433755.

It is an arithmetic number, because the mean of its divisors is an integer number (45340000128).

Almost surely, 2542704371987 is an apocalyptic number.

542704371987 is a deficient number, since it is larger than the sum of its proper divisors (182735630061).

542704371987 is a wasteful number, since it uses less digits than its factorization.

542704371987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90290.

The product of its (nonzero) digits is 11854080, while the sum is 57.

The spelling of 542704371987 in words is "five hundred forty-two billion, seven hundred four million, three hundred seventy-one thousand, nine hundred eighty-seven".

Divisors: 1 3 431 1293 4943 14829 84913 254739 2130433 6391299 36597503 109792509 419724959 1259174877 180901457329 542704371987