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52257742 = 226128871
BaseRepresentation
bin1100011101011…
…0001111001110
310122022222010221
43013112033032
5101334221432
65104021554
71203116635
oct307261716
9118288127
1052257742
1127553019
12156018ba
13aa98c54
146d2451c
1548c3b97
hex31d63ce

52257742 has 4 divisors (see below), whose sum is σ = 78386616. Its totient is φ = 26128870.

The previous prime is 52257731. The next prime is 52257757. The reversal of 52257742 is 24775225.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 52257698 and 52257707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13064434 + ... + 13064437.

It is an arithmetic number, because the mean of its divisors is an integer number (19596654).

Almost surely, 252257742 is an apocalyptic number.

52257742 is a deficient number, since it is larger than the sum of its proper divisors (26128874).

52257742 is a wasteful number, since it uses less digits than its factorization.

52257742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26128873.

The product of its digits is 39200, while the sum is 34.

The square root of 52257742 is about 7228.9516529024. The cubic root of 52257742 is about 373.8667822220.

The spelling of 52257742 in words is "fifty-two million, two hundred fifty-seven thousand, seven hundred forty-two".

Divisors: 1 2 26128871 52257742