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520475952 = 24316366523
BaseRepresentation
bin11111000001011…
…101010100110000
31100021100220210010
4133001131110300
52031220212302
6123351334520
715616654413
oct3701352460
91307326703
10520475952
11247882317
12126381440
1383aa4049
144d1a5b7a
1530a6016c
hex1f05d530

520475952 has 40 divisors (see below), whose sum is σ = 1352832064. Its totient is φ = 172425024.

The previous prime is 520475951. The next prime is 520476001. The reversal of 520475952 is 259574025.

It is a super-3 number, since 3×5204759523 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 520475952.

It is not an unprimeable number, because it can be changed into a prime (520475951) 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, 25438 + ... + 41085.

Almost surely, 2520475952 is an apocalyptic number.

It is an amenable number.

520475952 is an abundant number, since it is smaller than the sum of its proper divisors (832356112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520475952 is a wasteful number, since it uses less digits than its factorization.

520475952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66697 (or 66691 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 520475952 is about 22813.9420530517. The cubic root of 520475952 is about 804.3904195263.

The spelling of 520475952 in words is "five hundred twenty million, four hundred seventy-five thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 163 326 489 652 978 1304 1956 2608 3912 7824 66523 133046 199569 266092 399138 532184 798276 1064368 1596552 3193104 10843249 21686498 32529747 43372996 65059494 86745992 130118988 173491984 260237976 520475952