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53987854 = 21923223277
BaseRepresentation
bin1100110111110…
…0101000001110
310202120212102011
43031330220032
5102310102404
65205051434
71223613664
oct315745016
9122525364
1053987854
1128524968
12160b6b7a
13b25359b
147254c34
154b16604
hex337ca0e

53987854 has 32 divisors (see below), whose sum is σ = 89671680. Its totient is φ = 24263712.

The previous prime is 53987839. The next prime is 53987861. The reversal of 53987854 is 45878935.

It is a junction number, because it is equal to n+sod(n) for n = 53987798 and 53987807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194764 + ... + 195040.

It is an arithmetic number, because the mean of its divisors is an integer number (2802240).

Almost surely, 253987854 is an apocalyptic number.

53987854 is a deficient number, since it is larger than the sum of its proper divisors (35683826).

53987854 is a wasteful number, since it uses less digits than its factorization.

53987854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544.

The product of its digits is 1209600, while the sum is 49.

The square root of 53987854 is about 7347.6427512502. The cubic root of 53987854 is about 377.9479739526.

The spelling of 53987854 in words is "fifty-three million, nine hundred eighty-seven thousand, eight hundred fifty-four".

Divisors: 1 2 19 23 38 46 223 277 437 446 554 874 4237 5129 5263 6371 8474 10258 10526 12742 61771 97451 121049 123542 194902 242098 1173649 1420733 2347298 2841466 26993927 53987854