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5129380056 = 233213724169
BaseRepresentation
bin1001100011011110…
…00010000011011000
3111020110211111122010
410301233002003120
541001110130211
62204552225520
7241053003543
oct46157020330
914213744563
105129380056
1121a2446179
12bb199b2a0
136398bb138
1436933d85a
152004b14a6
hex131bc20d8

5129380056 has 16 divisors (see below), whose sum is σ = 12823450200. Its totient is φ = 1709793344.

The previous prime is 5129380051. The next prime is 5129380057. The reversal of 5129380056 is 6500839215.

It is a junction number, because it is equal to n+sod(n) for n = 5129379996 and 5129380023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5129380051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106862061 + ... + 106862108.

Almost surely, 25129380056 is an apocalyptic number.

It is an amenable number.

5129380056 is an abundant number, since it is smaller than the sum of its proper divisors (7694070144).

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

5129380056 is a wasteful number, since it uses less digits than its factorization.

5129380056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213724178 (or 213724174 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 5129380056 is about 71619.6904210008. The cubic root of 5129380056 is about 1724.5996473126.

The spelling of 5129380056 in words is "five billion, one hundred twenty-nine million, three hundred eighty thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 24 213724169 427448338 641172507 854896676 1282345014 1709793352 2564690028 5129380056