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145116834 = 23139191911
BaseRepresentation
bin10001010011001…
…00111010100010
3101010001200212120
420221210322202
5244122214314
622222205110
73411321102
oct1051447242
9333050776
10145116834
1174a07475
1240723796
13240ac365
14153b7202
15cb178a9
hex8a64ea2

145116834 has 32 divisors (see below), whose sum is σ = 294174720. Its totient is φ = 47720400.

The previous prime is 145116833. The next prime is 145116857. The reversal of 145116834 is 438611541.

It is a junction number, because it is equal to n+sod(n) for n = 145116795 and 145116804.

It is not an unprimeable number, because it can be changed into a prime (145116833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158839 + ... + 159749.

It is an arithmetic number, because the mean of its divisors is an integer number (9192960).

Almost surely, 2145116834 is an apocalyptic number.

145116834 is an abundant number, since it is smaller than the sum of its proper divisors (149057886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145116834 is a wasteful number, since it uses less digits than its factorization.

145116834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246.

The product of its digits is 11520, while the sum is 33.

The square root of 145116834 is about 12046.4448697531. Note that the first 3 decimals coincide. The cubic root of 145116834 is about 525.4998522845.

The spelling of 145116834 in words is "one hundred forty-five million, one hundred sixteen thousand, eight hundred thirty-four".

Divisors: 1 2 3 6 139 191 278 382 417 573 834 911 1146 1822 2733 5466 26549 53098 79647 126629 159294 174001 253258 348002 379887 522003 759774 1044006 24186139 48372278 72558417 145116834