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53201830 = 25111513203
BaseRepresentation
bin1100101011110…
…0101110100110
310201002221012011
43022330232212
5102104424310
65140144434
71214131243
oct312745646
9121087164
1053201830
1128038360
121599811a
13b039896
1470cc5ca
154a0d78a
hex32bcba6

53201830 has 32 divisors (see below), whose sum is σ = 105193728. Its totient is φ = 19212000.

The previous prime is 53201809. The next prime is 53201831. The reversal of 53201830 is 3810235.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53201831) 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, 15009 + ... + 18211.

It is an arithmetic number, because the mean of its divisors is an integer number (3287304).

Almost surely, 253201830 is an apocalyptic number.

53201830 is a deficient number, since it is larger than the sum of its proper divisors (51991898).

53201830 is a wasteful number, since it uses less digits than its factorization.

53201830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 53201830 is about 7293.9584588891. The cubic root of 53201830 is about 376.1047834943.

The spelling of 53201830 in words is "fifty-three million, two hundred one thousand, eight hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 151 302 755 1510 1661 3203 3322 6406 8305 16015 16610 32030 35233 70466 176165 352330 483653 967306 2418265 4836530 5320183 10640366 26600915 53201830