Base | Representation |
---|---|
bin | 1011011110111111011101… |
… | …11110101100010111100100 |
3 | 10022102021022012020011102120 |
4 | 11233133232332230113210 |
5 | 11302230420232122002 |
6 | 125413330014105540 |
7 | 5214356455255020 |
oct | 557375676542744 |
9 | 108367265204376 |
10 | 25254122145252 |
11 | 8057238639560 |
12 | 29ba5024ab2b0 |
13 | 11125b8453a90 |
14 | 63443da83380 |
15 | 2dbdb7222cbc |
hex | 16f7eefac5e4 |
25254122145252 has 96 divisors (see below), whose sum is σ = 79117809275904. Its totient is φ = 6054934377600.
The previous prime is 25254122145251. The next prime is 25254122145253.
25254122145252 is nontrivially palindromic in base 10.
It is an interprime number because it is at equal distance from previous prime (25254122145251) and next prime (25254122145253).
It is a super-2 number, since 2×252541221452522 (a number of 28 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is not an unprimeable number, because it can be changed into a prime (25254122145251) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1051191874 + ... + 1051215897.
It is an arithmetic number, because the mean of its divisors is an integer number (824143846624).
Almost surely, 225254122145252 is an apocalyptic number.
25254122145252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
25254122145252 is an abundant number, since it is smaller than the sum of its proper divisors (53863687130652).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25254122145252 is a wasteful number, since it uses less digits than its factorization.
25254122145252 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2102407809 (or 2102407807 counting only the distinct ones).
The product of its digits is 640000, while the sum is 42.
The spelling of 25254122145252 in words is "twenty-five trillion, two hundred fifty-four billion, one hundred twenty-two million, one hundred forty-five thousand, two hundred fifty-two".
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