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42151211340 = 223571723932467
BaseRepresentation
bin100111010000011010…
…000111000101001100
311000210120221101200120
4213100122013011030
51142311202230330
631210342424540
73021355245660
oct472032070514
9130716841616
1042151211340
1116970294a57
128204432150
133c89960c94
14207c1888a0
15116a7b7c10
hex9d068714c

42151211340 has 192 divisors, whose sum is σ = 142935819264. Its totient is φ = 9060360192.

The previous prime is 42151211329. The next prime is 42151211341. The reversal of 42151211340 is 4311215124.

It is a self number, because there is not a number n which added to its sum of digits gives 42151211340.

It is not an unprimeable number, because it can be changed into a prime (42151211341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17084787 + ... + 17087253.

It is an arithmetic number, because the mean of its divisors is an integer number (744457392).

Almost surely, 242151211340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42151211340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71467909632).

42151211340 is an abundant number, since it is smaller than the sum of its proper divisors (100784607924).

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

42151211340 is a wasteful number, since it uses less digits than its factorization.

42151211340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4896 (or 4894 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 42151211340 its reverse (4311215124), we get a palindrome (46462426464).

The spelling of 42151211340 in words is "forty-two billion, one hundred fifty-one million, two hundred eleven thousand, three hundred forty".