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31201325423325 = 3252178157209261
BaseRepresentation
bin1110001100000100111111…
…11010110001101011011101
311002110211002000102100110100
413012002133322301223131
513042200303302021300
6150205405132131313
76400135634120211
oct706023772615335
9132424060370410
1031201325423325
119a3a45386a322
1235bb038906b39
1314543704c39c5
1479c21b932941
15391941027700
hex1c609feb1add

31201325423325 has 36 divisors (see below), whose sum is σ = 59172395986548. Its totient is φ = 15661841779200.

The previous prime is 31201325423311. The next prime is 31201325423353. The reversal of 31201325423325 is 52332452310213.

31201325423325 is a `hidden beast` number, since 3 + 1 + 2 + 0 + 1 + 325 + 4 + 2 + 3 + 325 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 224019516249 + 30977305907076 = 473307^2 + 5565726^2 .

It is not a de Polignac number, because 31201325423325 - 214 = 31201325406941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31201325423325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4078600806 + ... + 4078608455.

It is an arithmetic number, because the mean of its divisors is an integer number (1643677666293).

Almost surely, 231201325423325 is an apocalyptic number.

It is an amenable number.

31201325423325 is a deficient number, since it is larger than the sum of its proper divisors (27971070563223).

31201325423325 is a wasteful number, since it uses less digits than its factorization.

31201325423325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8157209294 (or 8157209286 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 31201325423325 its reverse (52332452310213), we get a palindrome (83533777733538).

The spelling of 31201325423325 in words is "thirty-one trillion, two hundred one billion, three hundred twenty-five million, four hundred twenty-three thousand, three hundred twenty-five".

Divisors: 1 3 5 9 15 17 25 45 51 75 85 153 225 255 425 765 1275 3825 8157209261 24471627783 40786046305 73414883349 122358138915 138672557437 203930231525 367074416745 416017672311 611790694575 693362787185 1248053016933 1835372083725 2080088361555 3466813935925 6240265084665 10400441807775 31201325423325