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10301212021 = 139500314813
BaseRepresentation
bin10011001100000000…
…00000010101110101
3222120220112210100011
421212000000111311
5132044102241041
64422102420221
7513162600052
oct114600002565
928526483304
1010301212021
114406847071
121bb5a31671
13c82220b39
146da170029
1540455ae81
hex266000575

10301212021 has 8 divisors (see below), whose sum is σ = 10378095840. Its totient is φ = 10224368112.

The previous prime is 10301212013. The next prime is 10301212027. The reversal of 10301212021 is 12021210301.

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

It is a cyclic number.

It is not a de Polignac number, because 10301212021 - 23 = 10301212013 is a prime.

It is a super-2 number, since 2×103012120212 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10301211992 and 10301212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10301212027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688011 + ... + 702823.

It is an arithmetic number, because the mean of its divisors is an integer number (1297261980).

Almost surely, 210301212021 is an apocalyptic number.

It is an amenable number.

10301212021 is a deficient number, since it is larger than the sum of its proper divisors (76883819).

10301212021 is a wasteful number, since it uses less digits than its factorization.

10301212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19955.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10301212021 its reverse (12021210301), we get a palindrome (22322422322).

The spelling of 10301212021 in words is "ten billion, three hundred one million, two hundred twelve thousand, twenty-one".

Divisors: 1 139 5003 14813 695417 2059007 74109439 10301212021