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7142942015 = 511129871673
BaseRepresentation
bin1101010011100000…
…01010010100111111
3200102210201001100222
412221300022110333
5104112043121030
63140442011555
7342003001556
oct65160122477
920383631328
107142942015
113036006070
1214741a6bbb
1389ab03411
144ba928d9d
152bc1523e5
hex1a9c0a53f

7142942015 has 8 divisors (see below), whose sum is σ = 9350760528. Its totient is φ = 5194866880.

The previous prime is 7142942011. The next prime is 7142942017. The reversal of 7142942015 is 5102492417.

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

It is not a de Polignac number, because 7142942015 - 22 = 7142942011 is a prime.

It is a super-3 number, since 3×71429420153 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7142942011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64935782 + ... + 64935891.

It is an arithmetic number, because the mean of its divisors is an integer number (1168845066).

Almost surely, 27142942015 is an apocalyptic number.

7142942015 is a deficient number, since it is larger than the sum of its proper divisors (2207818513).

7142942015 is a wasteful number, since it uses less digits than its factorization.

7142942015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129871689.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 7142942015 is about 84515.9275817286. The cubic root of 7142942015 is about 1925.8644132649.

The spelling of 7142942015 in words is "seven billion, one hundred forty-two million, nine hundred forty-two thousand, fifteen".

Divisors: 1 5 11 55 129871673 649358365 1428588403 7142942015