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253941619805 = 5313177277109
BaseRepresentation
bin1110110010000000011…
…0011001110001011101
3220021110121221212222222
43230200012121301131
513130033023313210
6312354214115125
724226624103456
oct3544006316135
9807417855888
10253941619805
1198772473585
124127064baa5
131ac3c87c9c3
14c4100ca12d
156913dab655
hex3b20199c5d

253941619805 has 32 divisors (see below), whose sum is σ = 316030740480. Its totient is φ = 195682671360.

The previous prime is 253941619787. The next prime is 253941619807. The reversal of 253941619805 is 508916149352.

It is not a de Polignac number, because 253941619805 - 26 = 253941619741 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253941619807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35717591 + ... + 35724699.

It is an arithmetic number, because the mean of its divisors is an integer number (9875960640).

Almost surely, 2253941619805 is an apocalyptic number.

It is an amenable number.

253941619805 is a deficient number, since it is larger than the sum of its proper divisors (62089120675).

253941619805 is a wasteful number, since it uses less digits than its factorization.

253941619805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8189.

The product of its (nonzero) digits is 2332800, while the sum is 53.

The spelling of 253941619805 in words is "two hundred fifty-three billion, nine hundred forty-one million, six hundred nineteen thousand, eight hundred five".

Divisors: 1 5 31 155 317 727 1585 3635 7109 9827 22537 35545 49135 112685 220379 230459 1101895 1152295 2253553 5168243 7144229 11267765 25841215 35721145 69860143 160215533 349300715 801077665 1638333031 8191665155 50788323961 253941619805