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31974842044530 = 232571121097382363
BaseRepresentation
bin1110100010100101110010…
…00110100001000001110010
311012012202122201102001110200
413101102321012201001302
513142333434030411110
6152001012321540030
76510051251660310
oct721227106410162
9135182581361420
1031974842044530
11a2084aa82a600
123704b31aa4616
1314ac2a3814128
147c783a8d70b0
153a6b142d26c0
hex1d14b91a1072

31974842044530 has 288 divisors, whose sum is σ = 104529006271872. Its totient is φ = 6638049031680.

The previous prime is 31974842044511. The next prime is 31974842044573. The reversal of 31974842044530 is 3544024847913.

31974842044530 is a `hidden beast` number, since 3 + 1 + 9 + 7 + 4 + 84 + 20 + 4 + 4 + 530 = 666.

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 143 ways as a sum of consecutive naturals, for example, 83433129 + ... + 83815491.

It is an arithmetic number, because the mean of its divisors is an integer number (362947938444).

Almost surely, 231974842044530 is an apocalyptic number.

31974842044530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31974842044530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52264503135936).

31974842044530 is an abundant number, since it is smaller than the sum of its proper divisors (72554164227342).

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

31974842044530 is a wasteful number, since it uses less digits than its factorization.

31974842044530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383502 (or 383488 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 31974842044530 in words is "thirty-one trillion, nine hundred seventy-four billion, eight hundred forty-two million, forty-four thousand, five hundred thirty".