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145079724 = 22312089977
BaseRepresentation
bin10001010010110…
…11110110101100
3101002222210222010
420221123312230
5244120022344
622221321220
73411104646
oct1051336654
9332883863
10145079724
11749915a9
1240706210
13240984ba
14153a7896
15cb0b8b9
hex8a5bdac

145079724 has 12 divisors (see below), whose sum is σ = 338519384. Its totient is φ = 48359904.

The previous prime is 145079657. The next prime is 145079729. The reversal of 145079724 is 427970541.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (145079729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6044977 + ... + 6045000.

Almost surely, 2145079724 is an apocalyptic number.

It is an amenable number.

145079724 is an abundant number, since it is smaller than the sum of its proper divisors (193439660).

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

145079724 is a wasteful number, since it uses less digits than its factorization.

145079724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12089984 (or 12089982 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 145079724 is about 12044.9044828093. The cubic root of 145079724 is about 525.4550539852.

The spelling of 145079724 in words is "one hundred forty-five million, seventy-nine thousand, seven hundred twenty-four".

Divisors: 1 2 3 4 6 12 12089977 24179954 36269931 48359908 72539862 145079724