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52999531 = 1319229937
BaseRepresentation
bin1100101000101…
…1010101101011
310200201122200121
43022023111223
5102031441111
65131544111
71212326404
oct312132553
9120648617
1052999531
1127a0a372
12158bb037
13ac98790
1470789ab
1549bd871
hex328b56b

52999531 has 16 divisors (see below), whose sum is σ = 60407200. Its totient is φ = 46096128.

The previous prime is 52999519. The next prime is 52999543. The reversal of 52999531 is 13599925.

It is an interprime number because it is at equal distance from previous prime (52999519) and next prime (52999543).

It is not a de Polignac number, because 52999531 - 215 = 52966763 is a prime.

It is a super-2 number, since 2×529995312 = 5617900572439922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52999631) 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, 56095 + ... + 57031.

It is an arithmetic number, because the mean of its divisors is an integer number (3775450).

Almost surely, 252999531 is an apocalyptic number.

52999531 is a deficient number, since it is larger than the sum of its proper divisors (7407669).

52999531 is a wasteful number, since it uses less digits than its factorization.

52999531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198.

The product of its digits is 109350, while the sum is 43.

The square root of 52999531 is about 7280.0776781570. The cubic root of 52999531 is about 375.6274674327.

The spelling of 52999531 in words is "fifty-two million, nine hundred ninety-nine thousand, five hundred thirty-one".

Divisors: 1 13 19 229 247 937 2977 4351 12181 17803 56563 214573 231439 2789449 4076887 52999531