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23421398695 = 5171132438459
BaseRepresentation
bin10101110100000001…
…100010111010100111
32020110021111022220221
4111310001202322213
5340431334224240
614432025505211
71456255414132
oct256401427247
966407438827
1023421398695
119a29850552
124657942207
1322934836c6
1411c2863219
159212eda4a
hex574062ea7

23421398695 has 16 divisors (see below), whose sum is σ = 30022319520. Its totient is φ = 17478866944.

The previous prime is 23421398683. The next prime is 23421398701. The reversal of 23421398695 is 59689312432.

It is a cyclic number.

It is not a de Polignac number, because 23421398695 - 215 = 23421365927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1209625 + ... + 1228834.

It is an arithmetic number, because the mean of its divisors is an integer number (1876394970).

Almost surely, 223421398695 is an apocalyptic number.

23421398695 is a deficient number, since it is larger than the sum of its proper divisors (6600920825).

23421398695 is a wasteful number, since it uses less digits than its factorization.

23421398695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438594.

The product of its digits is 2799360, while the sum is 52.

The spelling of 23421398695 in words is "twenty-three billion, four hundred twenty-one million, three hundred ninety-eight thousand, six hundred ninety-five".

Divisors: 1 5 17 85 113 565 1921 9605 2438459 12192295 41453803 207269015 275545867 1377729335 4684279739 23421398695