Search a number
-
+
620976480 = 25351293701
BaseRepresentation
bin100101000000110…
…101100101100000
31121021110212120220
4211000311211200
52232432221410
6141341403040
721250133025
oct4500654540
91537425526
10620976480
11299585903
12153b69480
139b861607
145c68754c
15397b3070
hex25035960

620976480 has 48 divisors (see below), whose sum is σ = 1956077424. Its totient is φ = 165593600.

The previous prime is 620976479. The next prime is 620976481. The reversal of 620976480 is 84679026.

It is an interprime number because it is at equal distance from previous prime (620976479) and next prime (620976481).

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

It is a super-2 number, since 2×6209764802 = 771223577426380800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620976481) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 646371 + ... + 647330.

It is an arithmetic number, because the mean of its divisors is an integer number (40751613).

Almost surely, 2620976480 is an apocalyptic number.

620976480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620976480 is an abundant number, since it is smaller than the sum of its proper divisors (1335100944).

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

620976480 is a wasteful number, since it uses less digits than its factorization.

620976480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293719 (or 1293711 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 620976480 is about 24919.3996717417. The cubic root of 620976480 is about 853.1493228450.

The spelling of 620976480 in words is "six hundred twenty million, nine hundred seventy-six thousand, four hundred 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 1293701 2587402 3881103 5174804 6468505 7762206 10349608 12937010 15524412 19405515 20699216 25874020 31048824 38811030 41398432 51748040 62097648 77622060 103496080 124195296 155244120 206992160 310488240 620976480