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20152662 = 236750131
BaseRepresentation
bin100110011100…
…0000101010110
31101220212020220
41030320011112
520124341122
61555535210
7333203055
oct114700526
941825226
1020152662
1110414aa2
1268ba506
134237a6a
14296839c
151b8125c
hex1338156

20152662 has 16 divisors (see below), whose sum is σ = 40907712. Its totient is φ = 6617160.

The previous prime is 20152621. The next prime is 20152703. The reversal of 20152662 is 26625102.

It is an interprime number because it is at equal distance from previous prime (20152621) and next prime (20152703).

It is a super-2 number, since 2×201526622 = 812259571372488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24664 + ... + 25467.

It is an arithmetic number, because the mean of its divisors is an integer number (2556732).

Almost surely, 220152662 is an apocalyptic number.

20152662 is an abundant number, since it is smaller than the sum of its proper divisors (20755050).

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

20152662 is a wasteful number, since it uses less digits than its factorization.

20152662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50203.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 20152662 is about 4489.1716385097. The cubic root of 20152662 is about 272.1306591838.

Adding to 20152662 its reverse (26625102), we get a palindrome (46777764).

The spelling of 20152662 in words is "twenty million, one hundred fifty-two thousand, six hundred sixty-two".

Divisors: 1 2 3 6 67 134 201 402 50131 100262 150393 300786 3358777 6717554 10076331 20152662