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145849232 = 2415758061
BaseRepresentation
bin10001011000101…
…11101110010000
3101011102220112102
420230113232100
5244314133412
622250015532
73420461264
oct1054275620
9334386472
10145849232
1175367761
1240a175a8
13242a7829
14155280a4
15cc0e8c2
hex8b17b90

145849232 has 20 divisors (see below), whose sum is σ = 284387676. Its totient is φ = 72458880.

The previous prime is 145849229. The next prime is 145849271. The reversal of 145849232 is 232948541.

It can be written as a sum of positive squares in 2 ways, for example, as 36772096 + 109077136 = 6064^2 + 10444^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26519 + ... + 31542.

Almost surely, 2145849232 is an apocalyptic number.

It is an amenable number.

145849232 is a deficient number, since it is larger than the sum of its proper divisors (138538444).

145849232 is a wasteful number, since it uses less digits than its factorization.

145849232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58226 (or 58220 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 145849232 is about 12076.8055378896. The cubic root of 145849232 is about 526.3824270517.

The spelling of 145849232 in words is "one hundred forty-five million, eight hundred forty-nine thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 157 314 628 1256 2512 58061 116122 232244 464488 928976 9115577 18231154 36462308 72924616 145849232