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10101220042 = 243117456047
BaseRepresentation
bin10010110100001010…
…00110001011001010
3222001222020010220211
421122011012023022
5131141403020132
64350200111334
7505213645054
oct113205061312
928058203824
1010101220042
11431396a141
121b5aa6554a
13c4c96a3a4
146bb7908d4
153e1c04147
hex25a1462ca

10101220042 has 8 divisors (see below), whose sum is σ = 15504198336. Its totient is φ = 4933153932.

The previous prime is 10101220013. The next prime is 10101220043. The reversal of 10101220042 is 24002210101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (10101220043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58727938 + ... + 58728109.

It is an arithmetic number, because the mean of its divisors is an integer number (1938024792).

Almost surely, 210101220042 is an apocalyptic number.

10101220042 is a deficient number, since it is larger than the sum of its proper divisors (5402978294).

10101220042 is a wasteful number, since it uses less digits than its factorization.

10101220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117456092.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10101220042 its reverse (24002210101), we get a palindrome (34103430143).

The spelling of 10101220042 in words is "ten billion, one hundred one million, two hundred twenty thousand, forty-two".

Divisors: 1 2 43 86 117456047 234912094 5050610021 10101220042