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145250241 = 3291669543
BaseRepresentation
bin10001010100001…
…01011111000001
3101010022110212120
420222011133001
5244141001431
622225114453
73412415043
oct1052053701
9333273776
10145250241
1174a98724
1240788a29
1324127cb6
141540da93
15cb42196
hex8a857c1

145250241 has 8 divisors (see below), whose sum is σ = 200345280. Its totient is φ = 93494352.

The previous prime is 145250233. The next prime is 145250243. The reversal of 145250241 is 142052541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145250241 - 23 = 145250233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145250243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834685 + ... + 834858.

It is an arithmetic number, because the mean of its divisors is an integer number (25043160).

Almost surely, 2145250241 is an apocalyptic number.

It is an amenable number.

145250241 is a deficient number, since it is larger than the sum of its proper divisors (55095039).

145250241 is a wasteful number, since it uses less digits than its factorization.

145250241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669575.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145250241 is about 12051.9807915546. The cubic root of 145250241 is about 525.6608349562.

The spelling of 145250241 in words is "one hundred forty-five million, two hundred fifty thousand, two hundred forty-one".

Divisors: 1 3 29 87 1669543 5008629 48416747 145250241