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10012105025442 = 23613528231773
BaseRepresentation
bin1001000110110001111111…
…1101101010011110100010
31022110010222210222021000000
42101230133331222132202
52303014242341303232
633143255245440430
72052231203353542
oct221543775523642
938403883867000
1010012105025442
1132101232a9883
1211584b5870116
135781a2ca3080
14268834a89322
15125687a0c27c
hex91b1ff6a7a2

10012105025442 has 56 divisors (see below), whose sum is σ = 24249007817244. Its totient is φ = 3080647694304.

The previous prime is 10012105025399. The next prime is 10012105025459. The reversal of 10012105025442 is 24452050121001.

It is a happy number.

10012105025442 is a `hidden beast` number, since 1 + 0 + 0 + 1 + 210 + 5 + 0 + 2 + 5 + 442 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9454647175281 + 557457850161 = 3074841^2 + 746631^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 264096933 + ... + 264134840.

Almost surely, 210012105025442 is an apocalyptic number.

10012105025442 is an abundant number, since it is smaller than the sum of its proper divisors (14236902791802).

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

10012105025442 is an equidigital number, since it uses as much as digits as its factorization.

10012105025442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528231806 (or 528231791 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 10012105025442 its reverse (24452050121001), we get a palindrome (34464155146443).

The spelling of 10012105025442 in words is "ten trillion, twelve billion, one hundred five million, twenty-five thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 81 117 162 234 243 351 486 702 729 1053 1458 2106 3159 6318 9477 18954 528231773 1056463546 1584695319 3169390638 4754085957 6867013049 9508171914 13734026098 14262257871 20601039147 28524515742 41202078294 42786773613 61803117441 85573547226 123606234882 128360320839 185409352323 256720641678 370818704646 385080962517 556228056969 770161925034 1112456113938 1668684170907 3337368341814 5006052512721 10012105025442