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205913376 = 25324671531
BaseRepresentation
bin11000100010111…
…11110100100000
3112100110111001100
430101133310200
5410203212001
632233234400
75050143354
oct1421376440
9470414040
10205913376
11a6261849
1258b62a00
1333877a46
141d4c1464
1513126586
hexc45fd20

205913376 has 72 divisors (see below), whose sum is σ = 587203344. Its totient is φ = 68446080.

The previous prime is 205913371. The next prime is 205913387. The reversal of 205913376 is 673319502.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 205913376.

It is not an unprimeable number, because it can be changed into a prime (205913371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133731 + ... + 135261.

It is an arithmetic number, because the mean of its divisors is an integer number (8155602).

Almost surely, 2205913376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 205913376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293601672).

205913376 is an abundant number, since it is smaller than the sum of its proper divisors (381289968).

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

205913376 is a wasteful number, since it uses less digits than its factorization.

205913376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014 (or 2003 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 205913376 is about 14349.6820870708. The cubic root of 205913376 is about 590.5112642001.

The spelling of 205913376 in words is "two hundred five million, nine hundred thirteen thousand, three hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 467 934 1401 1531 1868 2802 3062 3736 4203 4593 5604 6124 7472 8406 9186 11208 12248 13779 14944 16812 18372 22416 24496 27558 33624 36744 44832 48992 55116 67248 73488 110232 134496 146976 220464 440928 714977 1429954 2144931 2859908 4289862 5719816 6434793 8579724 11439632 12869586 17159448 22879264 25739172 34318896 51478344 68637792 102956688 205913376