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52131234 = 2319943661
BaseRepresentation
bin1100011011011…
…1010110100010
310122002112121110
43012313112202
5101321144414
65101204150
71202052051
oct306672642
9118075543
1052131234
1127476a71
1215560656
13aa534ac
146cd0398
15489b459
hex31b75a2

52131234 has 16 divisors (see below), whose sum is σ = 104788800. Its totient is φ = 17289360.

The previous prime is 52131229. The next prime is 52131257. The reversal of 52131234 is 43213125.

It is a self number, because there is not a number n which added to its sum of digits gives 52131234.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20637 + ... + 23024.

It is an arithmetic number, because the mean of its divisors is an integer number (6549300).

Almost surely, 252131234 is an apocalyptic number.

52131234 is an abundant number, since it is smaller than the sum of its proper divisors (52657566).

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

52131234 is a wasteful number, since it uses less digits than its factorization.

52131234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43865.

The product of its digits is 720, while the sum is 21.

The square root of 52131234 is about 7220.1962577204. The cubic root of 52131234 is about 373.5648470135.

Adding to 52131234 its reverse (43213125), we get a palindrome (95344359).

The spelling of 52131234 in words is "fifty-two million, one hundred thirty-one thousand, two hundred thirty-four".

Divisors: 1 2 3 6 199 398 597 1194 43661 87322 130983 261966 8688539 17377078 26065617 52131234