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52969490 = 257315443
BaseRepresentation
bin1100101000010…
…0000000010010
310200200010110222
43022010000102
5102030010430
65131153042
71212143000
oct312040022
9120603428
1052969490
1127999842
12158a5782
13ac87bc2
14706ba70
1549b49e5
hex3284012

52969490 has 32 divisors (see below), whose sum is σ = 111196800. Its totient is φ = 18159792.

The previous prime is 52969487. The next prime is 52969493. The reversal of 52969490 is 9496925.

It is an interprime number because it is at equal distance from previous prime (52969487) and next prime (52969493).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52969493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4292 + ... + 11151.

It is an arithmetic number, because the mean of its divisors is an integer number (3474900).

Almost surely, 252969490 is an apocalyptic number.

52969490 is an abundant number, since it is smaller than the sum of its proper divisors (58227310).

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

52969490 is a wasteful number, since it uses less digits than its factorization.

52969490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15471 (or 15457 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 52969490 is about 7278.0141522259. The cubic root of 52969490 is about 375.5564834243.

The spelling of 52969490 in words is "fifty-two million, nine hundred sixty-nine thousand, four hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 343 490 686 1715 3430 15443 30886 77215 108101 154430 216202 540505 756707 1081010 1513414 3783535 5296949 7567070 10593898 26484745 52969490