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145684043 = 436155541
BaseRepresentation
bin10001010111011…
…11011001001011
3101011010111221022
420223233121023
5244243342133
622242303055
73416202551
oct1053573113
9334114838
10145684043
117526463a
1240957a8b
132424a59b
14154c3bd1
15cbca998
hex8aef64b

145684043 has 8 divisors (see below), whose sum is σ = 151518576. Its totient is φ = 139960800.

The previous prime is 145684037. The next prime is 145684057. The reversal of 145684043 is 340486541.

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

It is a cyclic number.

It is not a de Polignac number, because 145684043 - 24 = 145684027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145683994 and 145684012.

It is not an unprimeable number, because it can be changed into a prime (145684013) 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, 25148 + ... + 30393.

It is an arithmetic number, because the mean of its divisors is an integer number (18939822).

Almost surely, 2145684043 is an apocalyptic number.

145684043 is a deficient number, since it is larger than the sum of its proper divisors (5834533).

145684043 is an equidigital number, since it uses as much as digits as its factorization.

145684043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55645.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 145684043 is about 12069.9644987050. The cubic root of 145684043 is about 526.1836248737.

The spelling of 145684043 in words is "one hundred forty-five million, six hundred eighty-four thousand, forty-three".

Divisors: 1 43 61 2623 55541 2388263 3388001 145684043