Base | Representation |
---|---|
bin | 10001010100101… |
… | …01000001110110 |
3 | 101010102201012200 |
4 | 20222111001312 |
5 | 244200021120 |
6 | 22230325330 |
7 | 3413101500 |
oct | 1052250166 |
9 | 333381180 |
10 | 145313910 |
11 | 75031545 |
12 | 407b9846 |
13 | 2414ac81 |
14 | 15428d70 |
15 | cb55e90 |
hex | 8a95076 |
145313910 has 144 divisors (see below), whose sum is σ = 445916016. Its totient is φ = 32731776.
The previous prime is 145313897. The next prime is 145313921. The reversal of 145313910 is 19313541.
It is a super-2 number, since 2×1453139102 = 42232264878976200, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 365832 + ... + 366228.
It is an arithmetic number, because the mean of its divisors is an integer number (3096639).
Almost surely, 2145313910 is an apocalyptic number.
145313910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 145313910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222958008).
145313910 is an abundant number, since it is smaller than the sum of its proper divisors (300602106).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145313910 is a wasteful number, since it uses less digits than its factorization.
145313910 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 507 (or 497 counting only the distinct ones).
The product of its (nonzero) digits is 1620, while the sum is 27.
The square root of 145313910 is about 12054.6219351749. The cubic root of 145313910 is about 525.7376298047.
The spelling of 145313910 in words is "one hundred forty-five million, three hundred thirteen thousand, nine hundred ten".
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