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145147124 = 2249972719
BaseRepresentation
bin10001010011011…
…00010011110100
3101010010020102102
420221230103310
5244124201444
622223001232
73411505313
oct1051542364
9333106372
10145147124
1174a28201
1240739218
13240c0095
14153c427a
15cb2184e
hex8a6c4f4

145147124 has 12 divisors (see below), whose sum is σ = 254520000. Its totient is φ = 72427128.

The previous prime is 145147091. The next prime is 145147127. The reversal of 145147124 is 421741541.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145147127) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 34364 + ... + 38355.

It is an arithmetic number, because the mean of its divisors is an integer number (21210000).

Almost surely, 2145147124 is an apocalyptic number.

It is an amenable number.

145147124 is a deficient number, since it is larger than the sum of its proper divisors (109372876).

145147124 is a wasteful number, since it uses less digits than its factorization.

145147124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73222 (or 73220 counting only the distinct ones).

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

The square root of 145147124 is about 12047.7020215475. The cubic root of 145147124 is about 525.5364119832.

Adding to 145147124 its reverse (421741541), we get a palindrome (566888665).

The spelling of 145147124 in words is "one hundred forty-five million, one hundred forty-seven thousand, one hundred twenty-four".

Divisors: 1 2 4 499 998 1996 72719 145438 290876 36286781 72573562 145147124