Search a number
-
+
145092444 = 22371727291
BaseRepresentation
bin10001010010111…
…10111101011100
3101010000110102020
420221132331130
5244120424234
622221500140
73411160020
oct1051367534
9333013366
10145092444
11749a0112
1240711650
13240a1223
14153ac380
15cb10549
hex8a5ef5c

145092444 has 24 divisors (see below), whose sum is σ = 386913408. Its totient is φ = 41454960.

The previous prime is 145092443. The next prime is 145092461. The reversal of 145092444 is 444290541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145092443) 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, 863562 + ... + 863729.

It is an arithmetic number, because the mean of its divisors is an integer number (16121392).

Almost surely, 2145092444 is an apocalyptic number.

145092444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145092444 is an abundant number, since it is smaller than the sum of its proper divisors (241820964).

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

145092444 is a wasteful number, since it uses less digits than its factorization.

145092444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727305 (or 1727303 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 145092444 is about 12045.4324953486. The cubic root of 145092444 is about 525.4704101236.

The spelling of 145092444 in words is "one hundred forty-five million, ninety-two thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1727291 3454582 5181873 6909164 10363746 12091037 20727492 24182074 36273111 48364148 72546222 145092444