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52269630 = 2357248903
BaseRepresentation
bin1100011101100…
…1001000111110
310122100120110020
43013121020332
5101340112010
65104153010
71203166410
oct307311076
9118316406
1052269630
1127560a46
1215608766
13aaa149a
146d289b0
1548c7470
hex31d923e

52269630 has 32 divisors (see below), whose sum is σ = 143368704. Its totient is φ = 11947296.

The previous prime is 52269617. The next prime is 52269631. The reversal of 52269630 is 3696225.

It is a super-2 number, since 2×522696302 = 5464228440673800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52269591 and 52269600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52269631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124242 + ... + 124661.

It is an arithmetic number, because the mean of its divisors is an integer number (4480272).

Almost surely, 252269630 is an apocalyptic number.

52269630 is an abundant number, since it is smaller than the sum of its proper divisors (91099074).

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

52269630 is a wasteful number, since it uses less digits than its factorization.

52269630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248920.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 52269630 is about 7229.7738553844. The cubic root of 52269630 is about 373.8951301194.

The spelling of 52269630 in words is "fifty-two million, two hundred sixty-nine thousand, six hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 248903 497806 746709 1244515 1493418 1742321 2489030 3484642 3733545 5226963 7467090 8711605 10453926 17423210 26134815 52269630