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20153552230 = 257419687131
BaseRepresentation
bin10010110001001111…
…101100110101100110
31221000112110112022101
4102301033230311212
5312233302132410
613131452322314
71312265240020
oct226117546546
957015415271
1020153552230
118602178099
123aa547339a
131b9244b646
14d92857010
157ce49cd3a
hex4b13ecd66

20153552230 has 32 divisors (see below), whose sum is σ = 41557743360. Its totient is φ = 6893288160.

The previous prime is 20153552179. The next prime is 20153552231. The reversal of 20153552230 is 3225535102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20153552231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314236 + ... + 372895.

It is an arithmetic number, because the mean of its divisors is an integer number (1298679480).

Almost surely, 220153552230 is an apocalyptic number.

20153552230 is an abundant number, since it is smaller than the sum of its proper divisors (21404191130).

20153552230 is a wasteful number, since it uses less digits than its factorization.

20153552230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687564.

The product of its (nonzero) digits is 9000, while the sum is 28.

The spelling of 20153552230 in words is "twenty billion, one hundred fifty-three million, five hundred fifty-two thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 419 838 2095 2933 4190 5866 14665 29330 687131 1374262 3435655 4809917 6871310 9619834 24049585 48099170 287907889 575815778 1439539445 2015355223 2879078890 4030710446 10076776115 20153552230