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972200130122 = 213291289390093
BaseRepresentation
bin11100010010110111010…
…01001011011001001010
310102221102022001201020202
432021123221023121022
5111412031213130442
62022342250452202
7130145011520504
oct16113351133112
93387368051222
10972200130122
113453426a0221
12138503a34062
13708a797c3b0
14350aa2b0d74
151a450d82c32
hexe25ba4b64a

972200130122 has 16 divisors (see below), whose sum is σ = 1624631518440. Its totient is φ = 433235070912.

The previous prime is 972200130071. The next prime is 972200130131. The reversal of 972200130122 is 221031002279.

972200130122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 316778734561 + 655421395561 = 562831^2 + 809581^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644694293 + ... + 644695800.

Almost surely, 2972200130122 is an apocalyptic number.

972200130122 is a deficient number, since it is larger than the sum of its proper divisors (652431388318).

972200130122 is a wasteful number, since it uses less digits than its factorization.

972200130122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289390137.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 972200130122 in words is "nine hundred seventy-two billion, two hundred million, one hundred thirty thousand, one hundred twenty-two".

Divisors: 1 2 13 26 29 58 377 754 1289390093 2578780186 16762071209 33524142418 37392312697 74784625394 486100065061 972200130122