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63230533680 = 2435263460557
BaseRepresentation
bin111010111000110101…
…010110000000110000
320001012122101220211210
4322320311112000300
52013444004034210
645014145440120
74365624445146
oct727065260060
9201178356753
1063230533680
11248a7a95906
1210307940040
135c68b29892
1430bb949596
1519a1182e20
hexeb8d56030

63230533680 has 40 divisors (see below), whose sum is σ = 196014655152. Its totient is φ = 16861475584.

The previous prime is 63230533657. The next prime is 63230533711. The reversal of 63230533680 is 8633503236.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×632305336802 (a number of 22 digits) contains 22 as substring.

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, 131730039 + ... + 131730518.

Almost surely, 263230533680 is an apocalyptic number.

63230533680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63230533680 is an abundant number, since it is smaller than the sum of its proper divisors (132784121472).

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

63230533680 is a wasteful number, since it uses less digits than its factorization.

63230533680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263460573 (or 263460567 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 39.

The spelling of 63230533680 in words is "sixty-three billion, two hundred thirty million, five hundred thirty-three thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 263460557 526921114 790381671 1053842228 1317302785 1580763342 2107684456 2634605570 3161526684 3951908355 4215368912 5269211140 6323053368 7903816710 10538422280 12646106736 15807633420 21076844560 31615266840 63230533680