Base | Representation |
---|---|
bin | 10111011011001111… |
… | …011110000110100000 |
3 | 2101220221222222121021 |
4 | 113123033132012200 |
5 | 403003143232430 |
6 | 15315530135224 |
7 | 1550213561410 |
oct | 273317360640 |
9 | 71827888537 |
10 | 25153102240 |
11 | a7382a8002 |
12 | 4a5b881514 |
13 | 24ab180466 |
14 | 130883c640 |
15 | 9c336607a |
hex | 5db3de1a0 |
25153102240 has 48 divisors (see below), whose sum is σ = 67913379072. Its totient is φ = 8623920384.
The previous prime is 25153102231. The next prime is 25153102241. The reversal of 25153102240 is 4220135152.
It is not an unprimeable number, because it can be changed into a prime (25153102241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11227944 + ... + 11230183.
It is an arithmetic number, because the mean of its divisors is an integer number (1414862064).
Almost surely, 225153102240 is an apocalyptic number.
25153102240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
25153102240 is an abundant number, since it is smaller than the sum of its proper divisors (42760276832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25153102240 is a wasteful number, since it uses less digits than its factorization.
25153102240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22458149 (or 22458141 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 25.
Adding to 25153102240 its reverse (4220135152), we get a palindrome (29373237392).
The spelling of 25153102240 in words is "twenty-five billion, one hundred fifty-three million, one hundred two thousand, two hundred forty".
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