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10120032021 = 311306667637
BaseRepresentation
bin10010110110011001…
…10110111100010101
3222010021121220002210
421123030312330111
5131211212011041
64352111224033
7505532565351
oct113314667425
928107556083
1010120032021
114323548930
121b65218019
13c53825b38
146c008a461
153e36bd016
hex25b336f15

10120032021 has 8 divisors (see below), whose sum is σ = 14720046624. Its totient is φ = 6133352720.

The previous prime is 10120031989. The next prime is 10120032029. The reversal of 10120032021 is 12023002101.

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

It is not a de Polignac number, because 10120032021 - 25 = 10120031989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10120031988 and 10120032006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120032029) by changing a digit.

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, 153333786 + ... + 153333851.

It is an arithmetic number, because the mean of its divisors is an integer number (1840005828).

Almost surely, 210120032021 is an apocalyptic number.

10120032021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10120032021 is a deficient number, since it is larger than the sum of its proper divisors (4600014603).

10120032021 is a wasteful number, since it uses less digits than its factorization.

10120032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306667651.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10120032021 its reverse (12023002101), we get a palindrome (22143034122).

The spelling of 10120032021 in words is "ten billion, one hundred twenty million, thirty-two thousand, twenty-one".

Divisors: 1 3 11 33 306667637 920002911 3373344007 10120032021