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145844943 = 3109446009
BaseRepresentation
bin10001011000101…
…10101011001111
3101011102200122120
420230112223033
5244314014233
622245544023
73420442626
oct1054265317
9334380576
10145844943
1175364512
1240a15013
13242a58aa
14155266bd
15cc0d4b3
hex8b16acf

145844943 has 8 divisors (see below), whose sum is σ = 196244400. Its totient is φ = 96337728.

The previous prime is 145844939. The next prime is 145844947. The reversal of 145844943 is 349448541.

It is an interprime number because it is at equal distance from previous prime (145844939) and next prime (145844947).

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

It is not a de Polignac number, because 145844943 - 22 = 145844939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145844895 and 145844904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145844947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222678 + ... + 223331.

It is an arithmetic number, because the mean of its divisors is an integer number (24530550).

Almost surely, 2145844943 is an apocalyptic number.

145844943 is a deficient number, since it is larger than the sum of its proper divisors (50399457).

145844943 is a wasteful number, since it uses less digits than its factorization.

145844943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446121.

The product of its digits is 276480, while the sum is 42.

The square root of 145844943 is about 12076.6279647922. The cubic root of 145844943 is about 526.3772672111.

The spelling of 145844943 in words is "one hundred forty-five million, eight hundred forty-four thousand, nine hundred forty-three".

Divisors: 1 3 109 327 446009 1338027 48614981 145844943