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145304345 = 5139209071
BaseRepresentation
bin10001010100100…
…10101100011001
3101010102020002102
420222102230121
5244144214340
622230213145
73413031554
oct1052225431
9333366072
10145304345
117502533a
12407b41b5
1324146804
141542569b
15cb53215
hex8a92b19

145304345 has 8 divisors (see below), whose sum is σ = 175620480. Its totient is φ = 115406640.

The previous prime is 145304339. The next prime is 145304377. The reversal of 145304345 is 543403541.

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

It is not a de Polignac number, because 145304345 - 24 = 145304329 is a prime.

It is a super-2 number, since 2×1453043452 = 42226705351758050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103841 + ... + 105230.

It is an arithmetic number, because the mean of its divisors is an integer number (21952560).

Almost surely, 2145304345 is an apocalyptic number.

It is an amenable number.

145304345 is a deficient number, since it is larger than the sum of its proper divisors (30316135).

145304345 is a wasteful number, since it uses less digits than its factorization.

145304345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209215.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 145304345 is about 12054.2251928525. The cubic root of 145304345 is about 525.7260943392.

Adding to 145304345 its reverse (543403541), we get a palindrome (688707886).

The spelling of 145304345 in words is "one hundred forty-five million, three hundred four thousand, three hundred forty-five".

Divisors: 1 5 139 695 209071 1045355 29060869 145304345