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145012258 = 2103703943
BaseRepresentation
bin10001010010010…
…11011000100010
3101002212101102101
420221023120202
5244110343013
622220041014
73410404156
oct1051133042
9332771371
10145012258
1174945946
124069316a
1324073891
141538b066
15cae68dd
hex8a4b622

145012258 has 8 divisors (see below), whose sum is σ = 219630528. Its totient is φ = 71802084.

The previous prime is 145012253. The next prime is 145012271. The reversal of 145012258 is 852210541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (145012253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351766 + ... + 352177.

It is an arithmetic number, because the mean of its divisors is an integer number (27453816).

Almost surely, 2145012258 is an apocalyptic number.

145012258 is a deficient number, since it is larger than the sum of its proper divisors (74618270).

145012258 is a wasteful number, since it uses less digits than its factorization.

145012258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704048.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 145012258 is about 12042.1035537816. The cubic root of 145012258 is about 525.3735910804.

Adding to 145012258 its reverse (852210541), we get a palindrome (997222799).

The spelling of 145012258 in words is "one hundred forty-five million, twelve thousand, two hundred fifty-eight".

Divisors: 1 2 103 206 703943 1407886 72506129 145012258