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145158700 = 22528317489
BaseRepresentation
bin10001010011011…
…11001000101100
3101010010211022011
420221233020230
5244130034300
622223131004
73411554131
oct1051571054
9333124264
10145158700
1174a35975
1240743a64
13240c542b
14153c8588
15cb24eba
hex8a6f22c

145158700 has 36 divisors (see below), whose sum is σ = 318807720. Its totient is φ = 57360640.

The previous prime is 145158677. The next prime is 145158731. The reversal of 145158700 is 7851541.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 445 + ... + 17044.

It is an arithmetic number, because the mean of its divisors is an integer number (8855770).

Almost surely, 2145158700 is an apocalyptic number.

145158700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145158700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159403860).

145158700 is an abundant number, since it is smaller than the sum of its proper divisors (173649020).

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

145158700 is a wasteful number, since it uses less digits than its factorization.

145158700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17586 (or 17579 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 145158700 is about 12048.1824355377. The cubic root of 145158700 is about 525.5503827452.

The spelling of 145158700 in words is "one hundred forty-five million, one hundred fifty-eight thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 83 100 166 332 415 830 1660 2075 4150 8300 17489 34978 69956 87445 174890 349780 437225 874450 1451587 1748900 2903174 5806348 7257935 14515870 29031740 36289675 72579350 145158700