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40060233421 = 133081556417
BaseRepresentation
bin100101010011110001…
…101010011011001101
310211101212101201012221
4211103301222123031
51124020404432141
630223045455341
72615505236305
oct452361523315
9124355351187
1040060233421
1115a97a5932a
127920111551
133a156b1840
141d205aa605
151096e33bd1
hex953c6a6cd

40060233421 has 4 divisors (see below), whose sum is σ = 43141789852. Its totient is φ = 36978676992.

The previous prime is 40060233419. The next prime is 40060233427. The reversal of 40060233421 is 12433206004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14006722500 + 26053510921 = 118350^2 + 161411^2 .

It is a cyclic number.

It is not a de Polignac number, because 40060233421 - 21 = 40060233419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40060233427) 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 3 ways as a sum of consecutive naturals, for example, 1540778196 + ... + 1540778221.

It is an arithmetic number, because the mean of its divisors is an integer number (10785447463).

Almost surely, 240060233421 is an apocalyptic number.

It is an amenable number.

40060233421 is a deficient number, since it is larger than the sum of its proper divisors (3081556431).

40060233421 is a wasteful number, since it uses less digits than its factorization.

40060233421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081556430.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 40060233421 its reverse (12433206004), we get a palindrome (52493439425).

The spelling of 40060233421 in words is "forty billion, sixty million, two hundred thirty-three thousand, four hundred twenty-one".

Divisors: 1 13 3081556417 40060233421