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307342131 = 3103199367
BaseRepresentation
bin10010010100011…
…010101100110011
3210102022121010220
4102110122230303
51112134422011
650255224123
710421236125
oct2224325463
9712277126
10307342131
11148539768
1286b18043
134b89b965
142cb65215
151beae506
hex1251ab33

307342131 has 8 divisors (see below), whose sum is σ = 410191104. Its totient is φ = 204693960.

The previous prime is 307342127. The next prime is 307342181. The reversal of 307342131 is 131243703.

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

It is not a de Polignac number, because 307342131 - 22 = 307342127 is a prime.

It is a super-2 number, since 2×3073421312 = 188918370975242322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (307342121) 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, 46591 + ... + 52776.

It is an arithmetic number, because the mean of its divisors is an integer number (51273888).

Almost surely, 2307342131 is an apocalyptic number.

307342131 is a deficient number, since it is larger than the sum of its proper divisors (102848973).

307342131 is a wasteful number, since it uses less digits than its factorization.

307342131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100401.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 307342131 is about 17531.1759731057. The cubic root of 307342131 is about 674.8501768986.

Adding to 307342131 its reverse (131243703), we get a palindrome (438585834).

The spelling of 307342131 in words is "three hundred seven million, three hundred forty-two thousand, one hundred thirty-one".

Divisors: 1 3 1031 3093 99367 298101 102447377 307342131