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54021005742 = 23117098091427
BaseRepresentation
bin110010010011111001…
…110010000110101110
312011102211001102112110
4302103321302012232
51341113334140432
640452241344450
73621455654364
oct622371620656
9164384042473
1054021005742
1120a014a41a0
12a577638126
13512bb37572
142886791634
1516128b8dcc
hexc93e721ae

54021005742 has 64 divisors (see below), whose sum is σ = 118258963200. Its totient is φ = 16315265280.

The previous prime is 54021005741. The next prime is 54021005749. The reversal of 54021005742 is 24750012045.

It is a super-2 number, since 2×540210057422 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54021005741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37855633 + ... + 37857059.

It is an arithmetic number, because the mean of its divisors is an integer number (1847796300).

Almost surely, 254021005742 is an apocalyptic number.

54021005742 is an abundant number, since it is smaller than the sum of its proper divisors (64237957458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54021005742 is a wasteful number, since it uses less digits than its factorization.

54021005742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961.

The product of its (nonzero) digits is 11200, while the sum is 30.

Adding to 54021005742 its reverse (24750012045), we get a palindrome (78771017787).

The spelling of 54021005742 in words is "fifty-four billion, twenty-one million, five thousand, seven hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 709 809 1418 1427 1618 2127 2427 2854 4254 4281 4854 7799 8562 8899 15598 15697 17798 23397 26697 31394 46794 47091 53394 94182 573581 1011743 1147162 1154443 1720743 2023486 2308886 3035229 3441486 3463329 6070458 6309391 6926658 11129173 12618782 12698873 18928173 22258346 25397746 33387519 37856346 38096619 66775038 76193238 818500087 1637000174 2455500261 4911000522 9003500957 18007001914 27010502871 54021005742