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53871894 = 23222313421
BaseRepresentation
bin1100110110000…
…0010100010110
310202100222100100
43031200110112
5102242400034
65202354530
71222621626
oct315402426
9122328310
1053871894
112845582a
121605ba46
13b21287b
147224886
154ae2099
hex3360516

53871894 has 24 divisors (see below), whose sum is σ = 117254592. Its totient is φ = 17875440.

The previous prime is 53871869. The next prime is 53871913. The reversal of 53871894 is 49817835.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2697 + ... + 10724.

It is an arithmetic number, because the mean of its divisors is an integer number (4885608).

Almost surely, 253871894 is an apocalyptic number.

53871894 is an abundant number, since it is smaller than the sum of its proper divisors (63382698).

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

53871894 is a wasteful number, since it uses less digits than its factorization.

53871894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13652 (or 13649 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 53871894 is about 7339.7475433423. The cubic root of 53871894 is about 377.6771830263.

The spelling of 53871894 in words is "fifty-three million, eight hundred seventy-one thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 9 18 223 446 669 1338 2007 4014 13421 26842 40263 80526 120789 241578 2992883 5985766 8978649 17957298 26935947 53871894