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145012434 = 2377574561
BaseRepresentation
bin10001010010010…
…11011011010010
3101002212101122220
420221023123102
5244110344214
622220041510
73410404530
oct1051133322
9332771586
10145012434
1174945a96
1240693296
1324073998
141538b150
15cae69a9
hex8a4b6d2

145012434 has 32 divisors (see below), whose sum is σ = 331967616. Its totient is φ = 41368320.

The previous prime is 145012429. The next prime is 145012453. The reversal of 145012434 is 434210541.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 29514 + ... + 34074.

It is an arithmetic number, because the mean of its divisors is an integer number (10373988).

Almost surely, 2145012434 is an apocalyptic number.

145012434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145012434 is an abundant number, since it is smaller than the sum of its proper divisors (186955182).

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

145012434 is a wasteful number, since it uses less digits than its factorization.

145012434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 145012434 is about 12042.1108614728. The cubic root of 145012434 is about 525.3738036273.

Adding to 145012434 its reverse (434210541), we get a palindrome (579222975).

The spelling of 145012434 in words is "one hundred forty-five million, twelve thousand, four hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 42 757 1514 2271 4542 4561 5299 9122 10598 13683 15897 27366 31794 31927 63854 95781 191562 3452677 6905354 10358031 20716062 24168739 48337478 72506217 145012434