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52143372 = 22331925411
BaseRepresentation
bin1100011011101…
…0010100001100
310122010011021000
43012322110030
5101322041442
65101340300
71202132331
oct306722414
9118104230
1052143372
11274850a6
1215567690
13aa58b88
146cd4988
15489ed4c
hex31ba50c

52143372 has 48 divisors (see below), whose sum is σ = 142307200. Its totient is φ = 16465680.

The previous prime is 52143341. The next prime is 52143383. The reversal of 52143372 is 27334125.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10654 + ... + 14757.

Almost surely, 252143372 is an apocalyptic number.

It is an amenable number.

52143372 is an abundant number, since it is smaller than the sum of its proper divisors (90163828).

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

52143372 is a wasteful number, since it uses less digits than its factorization.

52143372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25443 (or 25435 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 52143372 is about 7221.0367676671. The cubic root of 52143372 is about 373.5938378116.

Adding to 52143372 its reverse (27334125), we get a palindrome (79477497).

The spelling of 52143372 in words is "fifty-two million, one hundred forty-three thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 19 27 36 38 54 57 76 108 114 171 228 342 513 684 1026 2052 25411 50822 76233 101644 152466 228699 304932 457398 482809 686097 914796 965618 1372194 1448427 1931236 2744388 2896854 4345281 5793708 8690562 13035843 17381124 26071686 52143372