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238815841252 = 22371613620549
BaseRepresentation
bin1101111001101010001…
…0001000101111100100
3211211102111010201120111
43132122202020233210
512403043323410002
6301413244142404
723153036104642
oct3363242105744
9754374121514
10238815841252
119231035324a
123a34ab37a04
131969bc65791
14b7b72c4192
15632aeee3d7
hex379a888be4

238815841252 has 12 divisors (see below), whose sum is σ = 429223066300. Its totient is φ = 116180679456.

The previous prime is 238815841249. The next prime is 238815841267. The reversal of 238815841252 is 252148518832.

238815841252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 125417972736 + 113397868516 = 354144^2 + 336746^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 238815841196 and 238815841205.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 806810127 + ... + 806810422.

Almost surely, 2238815841252 is an apocalyptic number.

It is an amenable number.

238815841252 is a deficient number, since it is larger than the sum of its proper divisors (190407225048).

238815841252 is a wasteful number, since it uses less digits than its factorization.

238815841252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613620590 (or 1613620588 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 49.

The spelling of 238815841252 in words is "two hundred thirty-eight billion, eight hundred fifteen million, eight hundred forty-one thousand, two hundred fifty-two".

Divisors: 1 2 4 37 74 148 1613620549 3227241098 6454482196 59703960313 119407920626 238815841252