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307414405 = 5257239233
BaseRepresentation
bin10010010100101…
…100010110000101
3210102110021021201
4102110230112011
51112144230110
650300542501
710421656624
oct2224542605
9712407251
10307414405
11148588aa1
1286b51a31
134b8c581c
142cb836bb
151bec5b3a
hex1252c585

307414405 has 8 divisors (see below), whose sum is σ = 370334232. Its totient is φ = 244973568.

The previous prime is 307414403. The next prime is 307414411. The reversal of 307414405 is 504414703.

It can be written as a sum of positive squares in 4 ways, for example, as 211237156 + 96177249 = 14534^2 + 9807^2 .

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 307414405 - 21 = 307414403 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 (307414403) 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, 118332 + ... + 120901.

It is an arithmetic number, because the mean of its divisors is an integer number (46291779).

Almost surely, 2307414405 is an apocalyptic number.

It is an amenable number.

307414405 is a deficient number, since it is larger than the sum of its proper divisors (62919827).

307414405 is a wasteful number, since it uses less digits than its factorization.

307414405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239495.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 307414405 is about 17533.2371511937. The cubic root of 307414405 is about 674.9030715872.

The spelling of 307414405 in words is "three hundred seven million, four hundred fourteen thousand, four hundred five".

Divisors: 1 5 257 1285 239233 1196165 61482881 307414405