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52426940 = 2252621347
BaseRepresentation
bin1100011111111…
…1100010111100
310122122120020112
43013333202330
5101410130230
65111405152
71204423136
oct307774274
9118576215
1052426940
1127659155
12156837b8
13ab27c77
146d6a056
154908d95
hex31ff8bc

52426940 has 12 divisors (see below), whose sum is σ = 110096616. Its totient is φ = 20970768.

The previous prime is 52426939. The next prime is 52426943. The reversal of 52426940 is 4962425.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 52426897 and 52426906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52426943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1310654 + ... + 1310693.

It is an arithmetic number, because the mean of its divisors is an integer number (9174718).

Almost surely, 252426940 is an apocalyptic number.

It is an amenable number.

52426940 is an abundant number, since it is smaller than the sum of its proper divisors (57669676).

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

52426940 is a wasteful number, since it uses less digits than its factorization.

52426940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621356 (or 2621354 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 52426940 is about 7240.6449988934. The cubic root of 52426940 is about 374.2698444355.

The spelling of 52426940 in words is "fifty-two million, four hundred twenty-six thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 2621347 5242694 10485388 13106735 26213470 52426940