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307500053 = 7124935171
BaseRepresentation
bin10010010101000…
…001010000010101
3210102121121202212
4102111001100111
51112210000203
650302443205
710422464420
oct2225012025
9712547685
10307500053
11148637383
1286b93505
134b9257c3
142cba69b7
151bee11d8
hex12541415

307500053 has 8 divisors (see below), whose sum is σ = 351720000. Its totient is φ = 263352960.

The previous prime is 307500049. The next prime is 307500101. The reversal of 307500053 is 350005703.

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 307500053 - 22 = 307500049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307500013) 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, 8843 + ... + 26328.

It is an arithmetic number, because the mean of its divisors is an integer number (43965000).

Almost surely, 2307500053 is an apocalyptic number.

It is an amenable number.

307500053 is a deficient number, since it is larger than the sum of its proper divisors (44219947).

307500053 is a wasteful number, since it uses less digits than its factorization.

307500053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36427.

The product of its (nonzero) digits is 1575, while the sum is 23.

The square root of 307500053 is about 17535.6794279549. The cubic root of 307500053 is about 674.9657434833.

Adding to 307500053 its reverse (350005703), we get a palindrome (657505756).

The spelling of 307500053 in words is "three hundred seven million, five hundred thousand, fifty-three".

Divisors: 1 7 1249 8743 35171 246197 43928579 307500053