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23512104240 = 243597967101
BaseRepresentation
bin10101111001011011…
…100011110100110000
32020200121011122112120
4111321123203310300
5341123044313430
614445025554240
71461436405602
oct257133436460
966617148476
1023512104240
119a75a73a09
1246821a5980
1322a91c1821
1411d0915172
15929269610
hex5796e3d30

23512104240 has 40 divisors (see below), whose sum is σ = 72887523888. Its totient is φ = 6269894400.

The previous prime is 23512104199. The next prime is 23512104257. The reversal of 23512104240 is 4240121532.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 23512104240.

It is an unprimeable number.

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, 48983311 + ... + 48983790.

Almost surely, 223512104240 is an apocalyptic number.

23512104240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23512104240 is an abundant number, since it is smaller than the sum of its proper divisors (49375419648).

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

23512104240 is a wasteful number, since it uses less digits than its factorization.

23512104240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97967117 (or 97967111 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 23512104240 its reverse (4240121532), we get a palindrome (27752225772).

The spelling of 23512104240 in words is "twenty-three billion, five hundred twelve million, one hundred four thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 97967101 195934202 293901303 391868404 489835505 587802606 783736808 979671010 1175605212 1469506515 1567473616 1959342020 2351210424 2939013030 3918684040 4702420848 5878026060 7837368080 11756052120 23512104240