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145072 = 249067
BaseRepresentation
bin100011011010110000
321101000001
4203122300
514120242
63035344
71142644
oct433260
9241001
10145072
1199aa4
126bb54
1351055
143ac24
152ceb7
hex236b0

145072 has 10 divisors (see below), whose sum is σ = 281108. Its totient is φ = 72528.

The previous prime is 145069. The next prime is 145091. The reversal of 145072 is 270541.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4518 + ... + 4549.

2145072 is an apocalyptic number.

It is an amenable number.

145072 is a deficient number, since it is larger than the sum of its proper divisors (136036).

145072 is an equidigital number, since it uses as much as digits as its factorization.

145072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9075 (or 9069 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 145072 is about 380.8831841917. The cubic root of 145072 is about 52.5445728798.

The spelling of 145072 in words is "one hundred forty-five thousand, seventy-two".

Divisors: 1 2 4 8 16 9067 18134 36268 72536 145072