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145946577 = 3753131129
BaseRepresentation
bin10001011001011…
…11011111010001
3101011121212001210
420230233133101
5244330242302
622252050333
73421345140
oct1054573721
9334555053
10145946577
1175423907
1240a639a9
132430cc2a
1415551757
15cc2d66c
hex8b2f7d1

145946577 has 16 divisors (see below), whose sum is σ = 226592640. Its totient is φ = 81823872.

The previous prime is 145946551. The next prime is 145946597. The reversal of 145946577 is 775649541.

It is not a de Polignac number, because 145946577 - 212 = 145942481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145946597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64452 + ... + 66677.

It is an arithmetic number, because the mean of its divisors is an integer number (14162040).

Almost surely, 2145946577 is an apocalyptic number.

It is an amenable number.

145946577 is a deficient number, since it is larger than the sum of its proper divisors (80646063).

145946577 is a wasteful number, since it uses less digits than its factorization.

145946577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131192.

The product of its digits is 1058400, while the sum is 48.

The square root of 145946577 is about 12080.8351118621. The cubic root of 145946577 is about 526.4995098340.

The spelling of 145946577 in words is "one hundred forty-five million, nine hundred forty-six thousand, five hundred seventy-seven".

Divisors: 1 3 7 21 53 159 371 1113 131129 393387 917903 2753709 6949837 20849511 48648859 145946577