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42444215130 = 2353149192951
BaseRepresentation
bin100111100001110111…
…110101001101011010
311001120000021112022210
4213201313311031122
51143411204341010
631255410455550
73031543606302
oct474167651532
9131500245283
1042444215130
1117000720049
1282865945b6
13400557c4c5
1420a905a602
151186393b20
hex9e1df535a

42444215130 has 64 divisors (see below), whose sum is σ = 105367412736. Its totient is φ = 10930920000.

The previous prime is 42444215117. The next prime is 42444215147. The reversal of 42444215130 is 3151244424.

It is a super-2 number, since 2×424442151302 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410155 + ... + 503105.

It is an arithmetic number, because the mean of its divisors is an integer number (1646365824).

Almost surely, 242444215130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42444215130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52683706368).

42444215130 is an abundant number, since it is smaller than the sum of its proper divisors (62923197606).

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

42444215130 is a wasteful number, since it uses less digits than its factorization.

42444215130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93483.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 42444215130 its reverse (3151244424), we get a palindrome (45595459554).

The spelling of 42444215130 in words is "forty-two billion, four hundred forty-four million, two hundred fifteen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 491 930 982 1473 2455 2946 4910 7365 14730 15221 30442 45663 76105 91326 92951 152210 185902 228315 278853 456630 464755 557706 929510 1394265 2788530 2881481 5762962 8644443 14407405 17288886 28814810 43222215 45638941 86444430 91277882 136916823 228194705 273833646 456389410 684584115 1369168230 1414807171 2829614342 4244421513 7074035855 8488843026 14148071710 21222107565 42444215130