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972072107620 = 22583585585607
BaseRepresentation
bin11100010010101000000…
…00110011111001100100
310102221002101011111101121
432021110000303321210
5111411300424420440
62022321434503324
7130141565404165
oct16112400637144
93387071144347
10972072107620
113452873a9aa9
12138488b94b44
13708872a6a33
14350972a776c
151a4449e534a
hexe254033e64

972072107620 has 24 divisors (see below), whose sum is σ = 2065946025024. Its totient is φ = 384144157536.

The previous prime is 972072107597. The next prime is 972072107651. The reversal of 972072107620 is 26701270279.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292791144 + ... + 292794463.

It is an arithmetic number, because the mean of its divisors is an integer number (86081084376).

Almost surely, 2972072107620 is an apocalyptic number.

It is an amenable number.

972072107620 is an abundant number, since it is smaller than the sum of its proper divisors (1093873917404).

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

972072107620 is a wasteful number, since it uses less digits than its factorization.

972072107620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585585699 (or 585585697 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 43.

Adding to 972072107620 its reverse (26701270279), we get a palindrome (998773377899).

The spelling of 972072107620 in words is "nine hundred seventy-two billion, seventy-two million, one hundred seven thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 83 166 332 415 830 1660 585585607 1171171214 2342342428 2927928035 5855856070 11711712140 48603605381 97207210762 194414421524 243018026905 486036053810 972072107620