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145430092 = 2253685991
BaseRepresentation
bin10001010101100…
…01011001001100
3101010122121120201
420222301121030
5244212230332
622233023244
73414064303
oct1052613114
9333577521
10145430092
1175100865
1240854b24
132418bb12
141545943a
15cb7a5e7
hex8ab164c

145430092 has 12 divisors (see below), whose sum is σ = 259304976. Its totient is φ = 71342960.

The previous prime is 145430069. The next prime is 145430101. The reversal of 145430092 is 290034541.

It is a super-2 number, since 2×1454300922 = 42299823318256928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145430092.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342784 + ... + 343207.

It is an arithmetic number, because the mean of its divisors is an integer number (21608748).

Almost surely, 2145430092 is an apocalyptic number.

It is an amenable number.

145430092 is a deficient number, since it is larger than the sum of its proper divisors (113874884).

145430092 is a wasteful number, since it uses less digits than its factorization.

145430092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686048 (or 686046 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 145430092 is about 12059.4399538287. The cubic root of 145430092 is about 525.8777058141.

The spelling of 145430092 in words is "one hundred forty-five million, four hundred thirty thousand, ninety-two".

Divisors: 1 2 4 53 106 212 685991 1371982 2743964 36357523 72715046 145430092