Search a number
-
+
63898080 = 2535133121
BaseRepresentation
bin1111001111000…
…0000111100000
311110020100200120
43303300013200
5112324214310
610201320240
71404060531
oct363600740
9143210616
1063898080
1133083634
1219496080
131031331c
1486b4688
155922b70
hex3cf01e0

63898080 has 48 divisors (see below), whose sum is σ = 201280464. Its totient is φ = 17039360.

The previous prime is 63898067. The next prime is 63898097. The reversal of 63898080 is 8089836.

It is a tau number, because it is divible by the number of its divisors (48).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66081 + ... + 67040.

It is an arithmetic number, because the mean of its divisors is an integer number (4193343).

Almost surely, 263898080 is an apocalyptic number.

63898080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63898080 is an abundant number, since it is smaller than the sum of its proper divisors (137382384).

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

63898080 is a wasteful number, since it uses less digits than its factorization.

63898080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133139 (or 133131 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 63898080 is about 7993.6274619224. The cubic root of 63898080 is about 399.7875538532.

The spelling of 63898080 in words is "sixty-three million, eight hundred ninety-eight thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 133121 266242 399363 532484 665605 798726 1064968 1331210 1597452 1996815 2129936 2662420 3194904 3993630 4259872 5324840 6389808 7987260 10649680 12779616 15974520 21299360 31949040 63898080