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310242120025 = 5228974283633
BaseRepresentation
bin1001000001110111101…
…11110001000101011001
31002122210022021122002211
410200323313301011121
520040333440320100
6354305005155121
731262042336515
oct4407367610531
91078708248084
10310242120025
1110a633652702
125016355baa1
1323342a2cb66
14110314cd145
15810b9461ba
hex483bdf1159

310242120025 has 12 divisors (see below), whose sum is σ = 384833111292. Its totient is φ = 248107965440.

The previous prime is 310242120017. The next prime is 310242120029. The reversal of 310242120025 is 520021242013.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 7763019664 + 302479100361 = 88108^2 + 549981^2 .

It is not a de Polignac number, because 310242120025 - 23 = 310242120017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 310242119978 and 310242120005.

It is not an unprimeable number, because it can be changed into a prime (310242120029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2069392 + ... + 2214241.

It is an arithmetic number, because the mean of its divisors is an integer number (32069425941).

Almost surely, 2310242120025 is an apocalyptic number.

It is an amenable number.

310242120025 is a deficient number, since it is larger than the sum of its proper divisors (74590991267).

310242120025 is a wasteful number, since it uses less digits than its factorization.

310242120025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286540 (or 4286535 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 310242120025 its reverse (520021242013), we get a palindrome (830263362038).

The spelling of 310242120025 in words is "three hundred ten billion, two hundred forty-two million, one hundred twenty thousand, twenty-five".

Divisors: 1 5 25 2897 14485 72425 4283633 21418165 107090825 12409684801 62048424005 310242120025