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972922380159 = 31918181938827
BaseRepresentation
bin11100010100001101011…
…00010101111101111111
310110000021122002211001010
432022012230111331333
5111420021112131114
62022542051050303
7130201631531652
oct16120654257577
93400248084033
10972922380159
11345683357384
121386858a0993
13709914ac092
143513819b899
151a49449cc59
hexe286b15f7f

972922380159 has 16 divisors (see below), whose sum is σ = 1365581655680. Its totient is φ = 614442840480.

The previous prime is 972922380149. The next prime is 972922380163. The reversal of 972922380159 is 951083229279.

It is not a de Polignac number, because 972922380159 - 29 = 972922379647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 972922380099 and 972922380108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972922380149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 566904 + ... + 1505730.

It is an arithmetic number, because the mean of its divisors is an integer number (85348853480).

Almost surely, 2972922380159 is an apocalyptic number.

972922380159 is a deficient number, since it is larger than the sum of its proper divisors (392659275521).

972922380159 is a wasteful number, since it uses less digits than its factorization.

972922380159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957030.

The product of its (nonzero) digits is 4898880, while the sum is 57.

The spelling of 972922380159 in words is "nine hundred seventy-two billion, nine hundred twenty-two million, three hundred eighty thousand, one hundred fifty-nine".

Divisors: 1 3 19 57 18181 54543 345439 938827 1036317 2816481 17837713 53513139 17068813687 51206441061 324307460053 972922380159