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42354031405 = 578317538317
BaseRepresentation
bin100111011100011111…
…110011101100101101
311001022201120201111211
4213130133303230231
51143220113001110
631242425514421
73026400220060
oct473437635455
9131281521454
1042354031405
1116a64823744
128260342a11
133cbc994a5a
14209b0a28d7
15117d4cc98a
hex9dc7f3b2d

42354031405 has 32 divisors (see below), whose sum is σ = 58825960704. Its totient is φ = 28673035776.

The previous prime is 42354031399. The next prime is 42354031483. The reversal of 42354031405 is 50413045324.

It is not a de Polignac number, because 42354031405 - 25 = 42354031373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5088307 + ... + 5096623.

It is an arithmetic number, because the mean of its divisors is an integer number (1838311272).

Almost surely, 242354031405 is an apocalyptic number.

It is an amenable number.

42354031405 is a deficient number, since it is larger than the sum of its proper divisors (16471929299).

42354031405 is a wasteful number, since it uses less digits than its factorization.

42354031405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10165.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 42354031405 its reverse (50413045324), we get a palindrome (92767076729).

The spelling of 42354031405 in words is "forty-two billion, three hundred fifty-four million, thirty-one thousand, four hundred five".

Divisors: 1 5 7 35 83 415 581 1753 2905 8317 8765 12271 41585 58219 61355 145499 291095 690311 727495 1018493 3451555 4832177 5092465 14579701 24160885 72898505 102057907 510289535 1210115183 6050575915 8470806281 42354031405