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20030404042 = 211910472911
BaseRepresentation
bin10010101001111001…
…111011010111001010
31220200221201221202101
4102221321323113022
5312010240412132
613111333024014
71306241424265
oct225171732712
956627657671
1020030404042
118549706030
123a7018500a
131b72a917ac
14d8035bcdc
157c37747e7
hex4a9e7b5ca

20030404042 has 8 divisors (see below), whose sum is σ = 32777024832. Its totient is φ = 9104729100.

The previous prime is 20030403973. The next prime is 20030404063. The reversal of 20030404042 is 24040403002.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455236434 + ... + 455236477.

It is an arithmetic number, because the mean of its divisors is an integer number (4097128104).

Almost surely, 220030404042 is an apocalyptic number.

20030404042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20030404042 is a deficient number, since it is larger than the sum of its proper divisors (12746620790).

20030404042 is a wasteful number, since it uses less digits than its factorization.

20030404042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910472924.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 20030404042 its reverse (24040403002), we get a palindrome (44070807044).

The spelling of 20030404042 in words is "twenty billion, thirty million, four hundred four thousand, forty-two".

Divisors: 1 2 11 22 910472911 1820945822 10015202021 20030404042