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145022078 = 2163661673
BaseRepresentation
bin10001010010011…
…01110001111110
3101002212212220002
420221031301332
5244111201303
622220154302
73410444615
oct1051156176
9332785802
10145022078
1174952263
1240698992
13240781a6
141539087c
15cae9788
hex8a4dc7e

145022078 has 16 divisors (see below), whose sum is σ = 219524496. Its totient is φ = 71850240.

The previous prime is 145022077. The next prime is 145022089. The reversal of 145022078 is 870220541.

It is a self number, because there is not a number n which added to its sum of digits gives 145022078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145022077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215150 + ... + 215822.

It is an arithmetic number, because the mean of its divisors is an integer number (13720281).

Almost surely, 2145022078 is an apocalyptic number.

145022078 is a deficient number, since it is larger than the sum of its proper divisors (74502418).

145022078 is a wasteful number, since it uses less digits than its factorization.

145022078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 145022078 is about 12042.5112829509. The cubic root of 145022078 is about 525.3854499681.

The spelling of 145022078 in words is "one hundred forty-five million, twenty-two thousand, seventy-eight".

Divisors: 1 2 163 326 661 673 1322 1346 107743 109699 215486 219398 444853 889706 72511039 145022078