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7142021419 = 1317179180541
BaseRepresentation
bin1101010011011001…
…01001100100101011
3200102201222021112211
412221230221210223
5104111324141134
63140410145551
7341662115611
oct65154514453
920381867484
107142021419
113035537445
121473a222b7
1389a8703a0
144ba7696b1
152bc01e764
hex1a9b2992b

7142021419 has 16 divisors (see below), whose sum is σ = 8189385120. Its totient is φ = 6170135040.

The previous prime is 7142021353. The next prime is 7142021423. The reversal of 7142021419 is 9141202417.

It is not a de Polignac number, because 7142021419 - 217 = 7141890347 is a prime.

It is a super-3 number, since 3×71420214193 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7142021219) 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 15 ways as a sum of consecutive naturals, for example, 50712 + ... + 129829.

It is an arithmetic number, because the mean of its divisors is an integer number (511836570).

Almost surely, 27142021419 is an apocalyptic number.

7142021419 is a deficient number, since it is larger than the sum of its proper divisors (1047363701).

7142021419 is a wasteful number, since it uses less digits than its factorization.

7142021419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180750.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 7142021419 is about 84510.4811192079. The cubic root of 7142021419 is about 1925.7816733498.

The spelling of 7142021419 in words is "seven billion, one hundred forty-two million, twenty-one thousand, four hundred nineteen".

Divisors: 1 13 17 179 221 2327 3043 39559 180541 2347033 3069197 32316839 39899561 420118907 549386263 7142021419