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307049512831 = 6129423171077
BaseRepresentation
bin1000111011111011001…
…00111011111101111111
31002100112210211101100221
410131331210323331333
520012314133402311
6353020120402211
731116654540025
oct4357544737577
91070483741327
10307049512831
11109245499666
124b612316367
1322c5447c289
1410c0b4aa715
157ec1508671
hex477d93bf7f

307049512831 has 8 divisors (see below), whose sum is σ = 312095542464. Its totient is φ = 302003884320.

The previous prime is 307049512801. The next prime is 307049512849. The reversal of 307049512831 is 138215940703.

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 307049512831 - 211 = 307049510783 is a prime.

It is a super-2 number, since 2×3070495128312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307049512801) 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, 1709265 + ... + 1880341.

It is an arithmetic number, because the mean of its divisors is an integer number (39011942808).

Almost surely, 2307049512831 is an apocalyptic number.

307049512831 is a deficient number, since it is larger than the sum of its proper divisors (5046029633).

307049512831 is a wasteful number, since it uses less digits than its factorization.

307049512831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200561.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 307049512831 in words is "three hundred seven billion, forty-nine million, five hundred twelve thousand, eight hundred thirty-one".

Divisors: 1 61 29423 171077 1794803 10435697 5033598571 307049512831