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307080129 = 31723371051
BaseRepresentation
bin10010010011011…
…010101111000001
3210101211021202010
4102103122233001
51112103031004
650245443133
710416065226
oct2223325701
9711737663
10307080129
1114837a934
1286a104a9
134b809625
142cad794d
151be5ba89
hex124dabc1

307080129 has 24 divisors (see below), whose sum is σ = 436647328. Its totient is φ = 191923200.

The previous prime is 307080089. The next prime is 307080139. The reversal of 307080129 is 921080703.

It is a happy number.

It is not a de Polignac number, because 307080129 - 27 = 307080001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 307080096 and 307080105.

It is not an unprimeable number, because it can be changed into a prime (307080139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291654 + ... + 292704.

Almost surely, 2307080129 is an apocalyptic number.

It is an amenable number.

307080129 is a deficient number, since it is larger than the sum of its proper divisors (129567199).

307080129 is a wasteful number, since it uses less digits than its factorization.

307080129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 307080129 is about 17523.7019205418. The cubic root of 307080129 is about 674.6583577013.

The spelling of 307080129 in words is "three hundred seven million, eighty thousand, one hundred twenty-nine".

Divisors: 1 3 17 51 289 337 867 1011 1051 3153 5729 17187 17867 53601 97393 292179 303739 354187 911217 1062561 6021179 18063537 102360043 307080129