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307270742 = 2257597803
BaseRepresentation
bin10010010100001…
…001010001010110
3210102011222012212
4102110021101112
51112130130432
650253513422
710420521032
oct2224112126
9712158185
10307270742
111484a0069
1286aa2872
134b87530c
142cb471c2
151be982b2
hex12509456

307270742 has 8 divisors (see below), whose sum is σ = 462700296. Its totient is φ = 153037312.

The previous prime is 307270703. The next prime is 307270751. The reversal of 307270742 is 247072703.

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

It is a junction number, because it is equal to n+sod(n) for n = 307270699 and 307270708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298388 + ... + 299415.

It is an arithmetic number, because the mean of its divisors is an integer number (57837537).

Almost surely, 2307270742 is an apocalyptic number.

307270742 is a deficient number, since it is larger than the sum of its proper divisors (155429554).

307270742 is a wasteful number, since it uses less digits than its factorization.

307270742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598062.

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 307270742 is about 17529.1397963505. The cubic root of 307270742 is about 674.7979217676.

The spelling of 307270742 in words is "three hundred seven million, two hundred seventy thousand, seven hundred forty-two".

Divisors: 1 2 257 514 597803 1195606 153635371 307270742