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63450071 = 293921589
BaseRepresentation
bin1111001000001…
…0101111010111
311102101121010122
43302002233113
5112220400241
610143542155
71400213426
oct362025727
9142347118
1063450071
11328a7a83
12192ba95b
13101b7429
1485d92bd
15588504b
hex3c82bd7

63450071 has 4 divisors (see below), whose sum is σ = 63474600. Its totient is φ = 63425544.

The previous prime is 63450061. The next prime is 63450113. The reversal of 63450071 is 17005436.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63450071 - 26 = 63450007 is a prime.

It is a super-3 number, since 3×634500713 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63450071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63450041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7856 + ... + 13733.

It is an arithmetic number, because the mean of its divisors is an integer number (15868650).

Almost surely, 263450071 is an apocalyptic number.

63450071 is a deficient number, since it is larger than the sum of its proper divisors (24529).

63450071 is a wasteful number, since it uses less digits than its factorization.

63450071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24528.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 63450071 is about 7965.5552851010. Note that the first 3 decimals coincide. The cubic root of 63450071 is about 398.8510173405.

It can be divided in two parts, 634 and 50071, that added together give a palindrome (50705).

The spelling of 63450071 in words is "sixty-three million, four hundred fifty thousand, seventy-one".

Divisors: 1 2939 21589 63450071