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10302100221 = 37490576201
BaseRepresentation
bin10011001100000110…
…11001001011111101
3222120222012220201110
421212003121023331
5132044314201341
64422133432233
7513203256420
oct114603311375
928528186643
1010302100221
1144072a3416
121bb619b679
13c824721ba
146da3219b7
15404684216
hex2660d92fd

10302100221 has 8 divisors (see below), whose sum is σ = 15698438464. Its totient is φ = 5886914400.

The previous prime is 10302100199. The next prime is 10302100309. The reversal of 10302100221 is 12200120301.

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

It is not a de Polignac number, because 10302100221 - 25 = 10302100189 is a prime.

It is a super-2 number, since 2×103021002212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10302100197 and 10302100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10302100121) 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, 245288080 + ... + 245288121.

It is an arithmetic number, because the mean of its divisors is an integer number (1962304808).

Almost surely, 210302100221 is an apocalyptic number.

It is an amenable number.

10302100221 is a deficient number, since it is larger than the sum of its proper divisors (5396338243).

10302100221 is an equidigital number, since it uses as much as digits as its factorization.

10302100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490576211.

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

Adding to 10302100221 its reverse (12200120301), we get a palindrome (22502220522).

The spelling of 10302100221 in words is "ten billion, three hundred two million, one hundred thousand, two hundred twenty-one".

Divisors: 1 3 7 21 490576201 1471728603 3434033407 10302100221