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145743042 = 23231056109
BaseRepresentation
bin10001010111111…
…01110011000010
3101011020111212110
420223331303002
5244302234132
622243440150
73416536554
oct1053756302
9334214773
10145743042
11752a49a5
1240986056
132426b3b3
14154db4d4
15cbdd1cc
hex8afdcc2

145743042 has 16 divisors (see below), whose sum is σ = 304159680. Its totient is φ = 46468752.

The previous prime is 145743011. The next prime is 145743047. The reversal of 145743042 is 240347541.

It is not an unprimeable number, because it can be changed into a prime (145743047) 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, 527917 + ... + 528192.

It is an arithmetic number, because the mean of its divisors is an integer number (19009980).

Almost surely, 2145743042 is an apocalyptic number.

145743042 is an abundant number, since it is smaller than the sum of its proper divisors (158416638).

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

145743042 is a wasteful number, since it uses less digits than its factorization.

145743042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056137.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 145743042 is about 12072.4082932943. The cubic root of 145743042 is about 526.2546464196.

The spelling of 145743042 in words is "one hundred forty-five million, seven hundred forty-three thousand, forty-two".

Divisors: 1 2 3 6 23 46 69 138 1056109 2112218 3168327 6336654 24290507 48581014 72871521 145743042