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1304423142 = 231119763987
BaseRepresentation
bin100110110111111…
…1110101011100110
310100220111120011020
41031233332223212
510132413020032
6333234152010
744216261631
oct11557765346
93326446136
101304423142
1160a349460
12304a22606
1317a326319
14c5352c18
15797b5b2c
hex4dbfeae6

1304423142 has 16 divisors (see below), whose sum is σ = 2846014272. Its totient is φ = 395279720.

The previous prime is 1304423137. The next prime is 1304423143. The reversal of 1304423142 is 2413244031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304423143) 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, 9881928 + ... + 9882059.

It is an arithmetic number, because the mean of its divisors is an integer number (177875892).

Almost surely, 21304423142 is an apocalyptic number.

1304423142 is an abundant number, since it is smaller than the sum of its proper divisors (1541591130).

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

1304423142 is a wasteful number, since it uses less digits than its factorization.

1304423142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19764003.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1304423142 is about 36116.7986122801. The cubic root of 1304423142 is about 1092.6292730864.

Adding to 1304423142 its reverse (2413244031), we get a palindrome (3717667173).

The spelling of 1304423142 in words is "one billion, three hundred four million, four hundred twenty-three thousand, one hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 19763987 39527974 59291961 118583922 217403857 434807714 652211571 1304423142