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23440211409 = 326332967491
BaseRepresentation
bin10101110101001001…
…010011110111010001
32020111120220010010010
4111311021103313101
5341001143231114
614433541025133
71456604336526
oct256511236721
966446803103
1023440211409
119a3942a84a
1246620b51a9
13229733c5a4
1411c515d14d
15922cb7c59
hex575253dd1

23440211409 has 8 divisors (see below), whose sum is σ = 31265495712. Its totient is φ = 15620867360.

The previous prime is 23440211369. The next prime is 23440211413. The reversal of 23440211409 is 90411204432.

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 23440211409 - 211 = 23440209361 is a prime.

It is a super-2 number, since 2×234402114092 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23440211209) 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 7 ways as a sum of consecutive naturals, for example, 1475847 + ... + 1491644.

It is an arithmetic number, because the mean of its divisors is an integer number (3908186964).

Almost surely, 223440211409 is an apocalyptic number.

It is an amenable number.

23440211409 is a deficient number, since it is larger than the sum of its proper divisors (7825284303).

23440211409 is a wasteful number, since it uses less digits than its factorization.

23440211409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970127.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 23440211409 in words is "twenty-three billion, four hundred forty million, two hundred eleven thousand, four hundred nine".

Divisors: 1 3 2633 7899 2967491 8902473 7813403803 23440211409