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302121230131 = 7419771077469
BaseRepresentation
bin1000110010101111101…
…01000001111100110011
31001212211100101200110001
410121113311001330303
514422221013331011
6350443110250431
730553563040630
oct4312765017463
91055740350401
10302121230131
11107146615956
124a677956a17
132264a440a76
14108a0b57187
157cd3a1b7c1
hex4657d41f33

302121230131 has 16 divisors (see below), whose sum is σ = 354065261760. Its totient is φ = 252386104320.

The previous prime is 302121230101. The next prime is 302121230149. The reversal of 302121230131 is 131032121203.

It is not a de Polignac number, because 302121230131 - 211 = 302121228083 is a prime.

It is a super-2 number, since 2×3021212301312 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 302121230099 and 302121230108.

It is not an unprimeable number, because it can be changed into a prime (302121230101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258336 + ... + 819133.

It is an arithmetic number, because the mean of its divisors is an integer number (22129078860).

Almost surely, 2302121230131 is an apocalyptic number.

302121230131 is a deficient number, since it is larger than the sum of its proper divisors (51944031629).

302121230131 is a wasteful number, since it uses less digits than its factorization.

302121230131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078494.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 302121230131 its reverse (131032121203), we get a palindrome (433153351334).

The spelling of 302121230131 in words is "three hundred two billion, one hundred twenty-one million, two hundred thirty thousand, one hundred thirty-one".

Divisors: 1 7 41 287 977 6839 40057 280399 1077469 7542283 44176229 309233603 1052687213 7368810491 43160175733 302121230131