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42402331554 = 2311792781047
BaseRepresentation
bin100111011111011000…
…000011101110100010
311001110002110121212020
4213133120003232202
51143314444102204
631251313042310
73030524604612
oct473730035642
9131402417766
1042402331554
1116a8a013320
128274556396
133cc99a651b
1420a3676a42
15118286dbd9
hex9df603ba2

42402331554 has 32 divisors (see below), whose sum is σ = 92526990336. Its totient is φ = 12847411920.

The previous prime is 42402331511. The next prime is 42402331589. The reversal of 42402331554 is 45513320424.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 482659 + ... + 563705.

It is an arithmetic number, because the mean of its divisors is an integer number (2891468448).

Almost surely, 242402331554 is an apocalyptic number.

42402331554 is an abundant number, since it is smaller than the sum of its proper divisors (50124658782).

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

42402331554 is a wasteful number, since it uses less digits than its factorization.

42402331554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88990.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 42402331554 its reverse (45513320424), we get a palindrome (87915651978).

The spelling of 42402331554 in words is "forty-two billion, four hundred two million, three hundred thirty-one thousand, five hundred fifty-four".

Divisors: 1 2 3 6 11 22 33 66 7927 15854 23781 47562 81047 87197 162094 174394 243141 261591 486282 523182 891517 1783034 2674551 5349102 642459569 1284919138 1927378707 3854757414 7067055259 14134110518 21201165777 42402331554