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420553254 = 231131205549
BaseRepresentation
bin11001000100010…
…010001000100110
31002022100022121110
4121010102020212
51330130201004
6105421525450
713264433532
oct3104221046
91068308543
10420553254
111a6433980
12b8a13886
13691897a4
143dbd4bc2
1526dc3589
hex19112226

420553254 has 32 divisors (see below), whose sum is σ = 947174400. Its totient is φ = 123328800.

The previous prime is 420553253. The next prime is 420553303. The reversal of 420553254 is 452355024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420553253) 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, 100729 + ... + 104820.

It is an arithmetic number, because the mean of its divisors is an integer number (29599200).

Almost surely, 2420553254 is an apocalyptic number.

420553254 is an abundant number, since it is smaller than the sum of its proper divisors (526621146).

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

420553254 is a wasteful number, since it uses less digits than its factorization.

420553254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205596.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 420553254 is about 20507.3951051810. The cubic root of 420553254 is about 749.2159236959.

The spelling of 420553254 in words is "four hundred twenty million, five hundred fifty-three thousand, two hundred fifty-four".

Divisors: 1 2 3 6 11 22 31 33 62 66 93 186 341 682 1023 2046 205549 411098 616647 1233294 2261039 4522078 6372019 6783117 12744038 13566234 19116057 38232114 70092209 140184418 210276627 420553254