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72621482808 = 2337432270731
BaseRepresentation
bin100001110100010010…
…0111110001100111000
320221110010010120020110
41003220210332030320
52142212044422213
653210054224320
75150425263450
oct1035044761470
9227403116213
1072621482808
1128886a2a996
12120a89550a0
136b0459c904
14372cc4ad60
151d508365c3
hex10e893e338

72621482808 has 32 divisors (see below), whose sum is σ = 207489951360. Its totient is φ = 20748995040.

The previous prime is 72621482803. The next prime is 72621482831. The reversal of 72621482808 is 80828412627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72621482803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216135198 + ... + 216135533.

It is an arithmetic number, because the mean of its divisors is an integer number (6484060980).

Almost surely, 272621482808 is an apocalyptic number.

It is an amenable number.

72621482808 is an abundant number, since it is smaller than the sum of its proper divisors (134868468552).

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

72621482808 is a wasteful number, since it uses less digits than its factorization.

72621482808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432270747 (or 432270743 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 48.

The spelling of 72621482808 in words is "seventy-two billion, six hundred twenty-one million, four hundred eighty-two thousand, eight hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 432270731 864541462 1296812193 1729082924 2593624386 3025895117 3458165848 5187248772 6051790234 9077685351 10374497544 12103580468 18155370702 24207160936 36310741404 72621482808