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512054311 = 3116517881
BaseRepresentation
bin11110100001010…
…101010000100111
31022200112001110111
4132201111100213
52022041214221
6122451033451
715455250466
oct3641252047
91280461414
10512054311
1124304aa8a
1212359b887
1382115a22
144c0129dd
152ee49be1
hex1e855427

512054311 has 4 divisors (see below), whose sum is σ = 528572224. Its totient is φ = 495536400.

The previous prime is 512054299. The next prime is 512054317. The reversal of 512054311 is 113450215.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 512054311 - 29 = 512053799 is a prime.

It is a super-3 number, since 3×5120543113 (a number of 27 digits) contains 333 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 (512054317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8258910 + ... + 8258971.

It is an arithmetic number, because the mean of its divisors is an integer number (132143056).

Almost surely, 2512054311 is an apocalyptic number.

512054311 is a deficient number, since it is larger than the sum of its proper divisors (16517913).

512054311 is a wasteful number, since it uses less digits than its factorization.

512054311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16517912.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 512054311 is about 22628.6170810326. The cubic root of 512054311 is about 800.0282859790.

The spelling of 512054311 in words is "five hundred twelve million, fifty-four thousand, three hundred eleven".

Divisors: 1 31 16517881 512054311