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1010021000023 = 72815238531151
BaseRepresentation
bin11101011001010011111…
…00010110001101010111
310120120001002200222020001
432230221330112031113
5113022010334000043
62051555223152131
7132654155563360
oct16545174261527
93516032628201
101010021000023
1135a3905835a2
121438b9ba5647
1374324429659
1436c572b4b67
151b4163c174d
hexeb29f16357

1010021000023 has 32 divisors (see below), whose sum is σ = 1163002724352. Its totient is φ = 859245408000.

The previous prime is 1010021000003. The next prime is 1010021000047. The reversal of 1010021000023 is 3200001200101.

It is not a de Polignac number, because 1010021000023 - 25 = 1010020999991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1010020999973 and 1010021000009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010021000003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 877515498 + ... + 877516648.

It is an arithmetic number, because the mean of its divisors is an integer number (36343835136).

Almost surely, 21010021000023 is an apocalyptic number.

1010021000023 is a deficient number, since it is larger than the sum of its proper divisors (152981724329).

1010021000023 is a wasteful number, since it uses less digits than its factorization.

1010021000023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 1010021000023 its reverse (3200001200101), we get a palindrome (4210022200124).

The spelling of 1010021000023 in words is "one trillion, ten billion, twenty-one million, twenty-three", and thus it is an aban number and an uban number.

Divisors: 1 7 281 523 853 1151 1967 3661 5971 8057 146963 239693 323431 446119 601973 981803 1028741 1677851 2264017 3122833 4213811 6872621 125359439 169154413 275886643 513482969 877516073 1184080891 1931206501 3594380783 144288714289 1010021000023