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4023023123 = 71789379853
BaseRepresentation
bin1110111111001010…
…0111011000010011
3101101101000202020102
43233302213120103
531214343214443
61503111203015
7201460063250
oct35762473023
911341022212
104023023123
1117849898a9
1294337646b
134c1622b72
142a2428427
151882c1cb8
hexefca7613

4023023123 has 16 divisors (see below), whose sum is σ = 4922907840. Its totient is φ = 3208989696.

The previous prime is 4023023119. The next prime is 4023023149. The reversal of 4023023123 is 3213203204.

It is not a de Polignac number, because 4023023123 - 22 = 4023023119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4023023095 and 4023023104.

It is not an unprimeable number, because it can be changed into a prime (4023023423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179336 + ... + 200517.

It is an arithmetic number, because the mean of its divisors is an integer number (307681740).

Almost surely, 24023023123 is an apocalyptic number.

4023023123 is a deficient number, since it is larger than the sum of its proper divisors (899884717).

4023023123 is a wasteful number, since it uses less digits than its factorization.

4023023123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379966.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 4023023123 is about 63427.3058153978. The cubic root of 4023023123 is about 1590.4408048285.

Adding to 4023023123 its reverse (3213203204), we get a palindrome (7236226327).

The spelling of 4023023123 in words is "four billion, twenty-three million, twenty-three thousand, one hundred twenty-three".

Divisors: 1 7 17 89 119 623 1513 10591 379853 2658971 6457501 33806917 45202507 236648419 574717589 4023023123