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23445100240 = 245476235399
BaseRepresentation
bin10101110101011011…
…111101011011010000
32020111221002111022221
4111311123331123100
5341003421201430
614434233510424
71456664030632
oct256533753320
966457074287
1023445100240
119a41169901
124663872414
1322983618a3
1411c5a72a52
1592343157a
hex5756fd6d0

23445100240 has 40 divisors (see below), whose sum is σ = 55669651200. Its totient is φ = 9178505856.

The previous prime is 23445100229. The next prime is 23445100243. The reversal of 23445100240 is 4200154432.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23445100243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3113940 + ... + 3121459.

It is an arithmetic number, because the mean of its divisors is an integer number (1391741280).

Almost surely, 223445100240 is an apocalyptic number.

23445100240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23445100240 is an abundant number, since it is smaller than the sum of its proper divisors (32224550960).

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

23445100240 is a wasteful number, since it uses less digits than its factorization.

23445100240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6235459 (or 6235453 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 23445100240 its reverse (4200154432), we get a palindrome (27645254672).

The spelling of 23445100240 in words is "twenty-three billion, four hundred forty-five million, one hundred thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 47 80 94 188 235 376 470 752 940 1880 3760 6235399 12470798 24941596 31176995 49883192 62353990 99766384 124707980 249415960 293063753 498831920 586127506 1172255012 1465318765 2344510024 2930637530 4689020048 5861275060 11722550120 23445100240