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67629147020 = 2256143550457
BaseRepresentation
bin111110111111000000…
…101110001110001100
320110120012011121222222
4332333000232032030
52102001030201040
651022435154512
74612625156561
oct767700561614
9213505147888
1067629147020
1126754988146
1211134a45a38
1364ba1c5676
1433b7bc2868
151b5c3e5bb5
hexfbf02e38c

67629147020 has 24 divisors (see below), whose sum is σ = 142044585984. Its totient is φ = 27047206016.

The previous prime is 67629147013. The next prime is 67629147043. The reversal of 67629147020 is 2074192676.

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, 152369 + ... + 398088.

It is an arithmetic number, because the mean of its divisors is an integer number (5918524416).

Almost surely, 267629147020 is an apocalyptic number.

It is an amenable number.

67629147020 is an abundant number, since it is smaller than the sum of its proper divisors (74415438964).

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

67629147020 is a wasteful number, since it uses less digits than its factorization.

67629147020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556609 (or 556607 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 67629147020 in words is "sixty-seven billion, six hundred twenty-nine million, one hundred forty-seven thousand, twenty".

Divisors: 1 2 4 5 10 20 6143 12286 24572 30715 61430 122860 550457 1100914 2201828 2752285 5504570 11009140 3381457351 6762914702 13525829404 16907286755 33814573510 67629147020