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145939016 = 23178391279
BaseRepresentation
bin10001011001011…
…01101001001000
3101011121110200202
420230231221020
5244330022031
622251551332
73421314116
oct1054555110
9334543622
10145939016
1175419163
1240a5b548
1324309662
141554cab6
15cc2b2cb
hex8b2da48

145939016 has 32 divisors (see below), whose sum is σ = 290304000. Its totient is φ = 68541696.

The previous prime is 145939007. The next prime is 145939039. The reversal of 145939016 is 610939541.

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, 113465 + ... + 114743.

It is an arithmetic number, because the mean of its divisors is an integer number (9072000).

Almost surely, 2145939016 is an apocalyptic number.

It is an amenable number.

145939016 is a deficient number, since it is larger than the sum of its proper divisors (144364984).

145939016 is a wasteful number, since it uses less digits than its factorization.

145939016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141 (or 2137 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 145939016 is about 12080.5221741446. The cubic root of 145939016 is about 526.4904176222.

The spelling of 145939016 in words is "one hundred forty-five million, nine hundred thirty-nine thousand, sixteen".

Divisors: 1 2 4 8 17 34 68 136 839 1279 1678 2558 3356 5116 6712 10232 14263 21743 28526 43486 57052 86972 114104 173944 1073081 2146162 4292324 8584648 18242377 36484754 72969508 145939016