Search a number
-
+
156112360021 = 6311032123971
BaseRepresentation
bin1001000101100100000…
…1011001001001010101
3112220221201221120112001
42101121001121021111
510024204231010041
6155414513355301
714164416110602
oct2213101311125
9486851846461
10156112360021
11602303a2762
1226309868b31
131194b9c8837
1477ad48b6a9
1540da50e131
hex2459059255

156112360021 has 8 divisors (see below), whose sum is σ = 156381437888. Its totient is φ = 155843352000.

The previous prime is 156112360013. The next prime is 156112360067. The reversal of 156112360021 is 120063211651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 156112360021 - 23 = 156112360013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156112360421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6500566 + ... + 6524536.

It is an arithmetic number, because the mean of its divisors is an integer number (19547679736).

Almost surely, 2156112360021 is an apocalyptic number.

It is an amenable number.

156112360021 is a deficient number, since it is larger than the sum of its proper divisors (269077867).

156112360021 is a wasteful number, since it uses less digits than its factorization.

156112360021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34923.

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 156112360021 its reverse (120063211651), we get a palindrome (276175571672).

The spelling of 156112360021 in words is "one hundred fifty-six billion, one hundred twelve million, three hundred sixty thousand, twenty-one".

Divisors: 1 631 10321 23971 6512551 15125701 247404691 156112360021