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145558148 = 22173757853
BaseRepresentation
bin10001010110100…
…00101010000100
3101010220010020112
420223100222010
5244230330043
622235452152
73415136531
oct1053205204
9333803215
10145558148
1175188a9a
12408b7058
13242051a8
141548dd88
15cba3518
hex8ad0a84

145558148 has 24 divisors (see below), whose sum is σ = 277004952. Its totient is φ = 66645504.

The previous prime is 145558123. The next prime is 145558151. The reversal of 145558148 is 841855541.

It can be written as a sum of positive squares in 4 ways, for example, as 39715204 + 105842944 = 6302^2 + 10288^2 .

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, 26411 + ... + 31442.

It is an arithmetic number, because the mean of its divisors is an integer number (11541873).

Almost surely, 2145558148 is an apocalyptic number.

It is an amenable number.

145558148 is a deficient number, since it is larger than the sum of its proper divisors (131446804).

145558148 is a wasteful number, since it uses less digits than its factorization.

145558148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57911 (or 57909 counting only the distinct ones).

The product of its digits is 128000, while the sum is 41.

The square root of 145558148 is about 12064.7481531941. The cubic root of 145558148 is about 526.0320114297.

The spelling of 145558148 in words is "one hundred forty-five million, five hundred fifty-eight thousand, one hundred forty-eight".

Divisors: 1 2 4 17 34 37 68 74 148 629 1258 2516 57853 115706 231412 983501 1967002 2140561 3934004 4281122 8562244 36389537 72779074 145558148