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42857540079 = 3137310404841
BaseRepresentation
bin100111111010100000…
…100010100111101111
311002121211000121120020
4213322200202213233
51200233012240304
631404413453223
73045023036304
oct477240424757
9132554017506
1042857540079
11171a2a67212
128380aa1213
1340700a7b93
142107ccd0ab
1511ac7da5d9
hex9fa8229ef

42857540079 has 8 divisors (see below), whose sum is σ = 57185011632. Its totient is φ = 28550880960.

The previous prime is 42857540051. The next prime is 42857540081. The reversal of 42857540079 is 97004575824.

It is a happy number.

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

It is not a de Polignac number, because 42857540079 - 27 = 42857539951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42857540279) 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, 5198302 + ... + 5206539.

It is an arithmetic number, because the mean of its divisors is an integer number (7148126454).

Almost surely, 242857540079 is an apocalyptic number.

42857540079 is a deficient number, since it is larger than the sum of its proper divisors (14327471553).

42857540079 is a wasteful number, since it uses less digits than its factorization.

42857540079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10406217.

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 42857540079 in words is "forty-two billion, eight hundred fifty-seven million, five hundred forty thousand, seventy-nine".

Divisors: 1 3 1373 4119 10404841 31214523 14285846693 42857540079