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80613388 = 22172940879
BaseRepresentation
bin1001100111000…
…01000000001100
312121200120210001
410303201000030
5131114112023
611555454044
71666126312
oct463410014
9177616701
1080613388
1141560039
1222bb7324
131391663b
14a9c60b2
1571256ad
hex4ce100c

80613388 has 24 divisors (see below), whose sum is σ = 154526400. Its totient is φ = 36626688.

The previous prime is 80613373. The next prime is 80613427. The reversal of 80613388 is 88331608.

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, 18468 + ... + 22411.

It is an arithmetic number, because the mean of its divisors is an integer number (6438600).

Almost surely, 280613388 is an apocalyptic number.

It is an amenable number.

80613388 is a deficient number, since it is larger than the sum of its proper divisors (73913012).

80613388 is a wasteful number, since it uses less digits than its factorization.

80613388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40929 (or 40927 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 80613388 is about 8978.4958651213. The cubic root of 80613388 is about 431.9853890234.

It can be divided in two parts, 8061 and 3388, that added together give a square (11449 = 1072).

The spelling of 80613388 in words is "eighty million, six hundred thirteen thousand, three hundred eighty-eight".

Divisors: 1 2 4 17 29 34 58 68 116 493 986 1972 40879 81758 163516 694943 1185491 1389886 2370982 2779772 4741964 20153347 40306694 80613388