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23381925644 = 22721110845049
BaseRepresentation
bin10101110001101010…
…111101111100001100
32020100112012220002002
4111301222331330030
5340341233110034
614424055451432
71455266042300
oct256152757414
966315186062
1023381925644
119a0953a8a0
124646686b78
13228824297c
1411bb509d00
1591cb02e7e
hex571abdf0c

23381925644 has 36 divisors (see below), whose sum is σ = 51926099400. Its totient is φ = 9109840320.

The previous prime is 23381925643. The next prime is 23381925667. The reversal of 23381925644 is 44652918332.

It is not an unprimeable number, because it can be changed into a prime (23381925643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5420369 + ... + 5424680.

It is an arithmetic number, because the mean of its divisors is an integer number (1442391650).

Almost surely, 223381925644 is an apocalyptic number.

It is an amenable number.

23381925644 is an abundant number, since it is smaller than the sum of its proper divisors (28544173756).

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

23381925644 is a wasteful number, since it uses less digits than its factorization.

23381925644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10845078 (or 10845069 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 47.

The spelling of 23381925644 in words is "twenty-three billion, three hundred eighty-one million, nine hundred twenty-five thousand, six hundred forty-four".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 1078 2156 10845049 21690098 43380196 75915343 119295539 151830686 238591078 303661372 477182156 531407401 835068773 1062814802 1670137546 2125629604 3340275092 5845481411 11690962822 23381925644