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507742317 = 33127148073
BaseRepresentation
bin11110010000111…
…000100001101101
31022101101222112000
4132100320201231
52014440223232
6122214402513
715403511205
oct3620704155
91271358460
10507742317
11240675355
12122060439
1381266154
144b60d405
152e89727c
hex1e43886d

507742317 has 16 divisors (see below), whose sum is σ = 758138880. Its totient is φ = 335827296.

The previous prime is 507742303. The next prime is 507742321. The reversal of 507742317 is 713247705.

It is not a de Polignac number, because 507742317 - 26 = 507742253 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507742117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70608 + ... + 77465.

It is an arithmetic number, because the mean of its divisors is an integer number (47383680).

Almost surely, 2507742317 is an apocalyptic number.

It is an amenable number.

507742317 is a deficient number, since it is larger than the sum of its proper divisors (250396563).

507742317 is a wasteful number, since it uses less digits than its factorization.

507742317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148209 (or 148203 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 507742317 is about 22533.1381968868. The cubic root of 507742317 is about 797.7762813421.

The spelling of 507742317 in words is "five hundred seven million, seven hundred forty-two thousand, three hundred seventeen".

Divisors: 1 3 9 27 127 381 1143 3429 148073 444219 1332657 3997971 18805271 56415813 169247439 507742317