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67452049990 = 25131154944927
BaseRepresentation
bin111110110100011101…
…001001101001000110
320110002211221011112201
4332310131021221012
52101120211044430
650553111305114
74605344651653
oct766435115106
9213084834481
1067452049990
1126673a18566
12110a567b19a
13648c5c9c20
14339c482c2a
151b4bab28ca
hexfb4749a46

67452049990 has 32 divisors (see below), whose sum is σ = 130767436800. Its totient is φ = 24902661504.

The previous prime is 67452049963. The next prime is 67452050027. The reversal of 67452049990 is 9994025476.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1478907 + ... + 1523833.

It is an arithmetic number, because the mean of its divisors is an integer number (4086482400).

Almost surely, 267452049990 is an apocalyptic number.

67452049990 is a deficient number, since it is larger than the sum of its proper divisors (63315386810).

67452049990 is a wasteful number, since it uses less digits than its factorization.

67452049990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56496.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 67452049990 in words is "sixty-seven billion, four hundred fifty-two million, forty-nine thousand, nine hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 11549 23098 44927 57745 89854 115490 150137 224635 300274 449270 584051 750685 1168102 1501370 2920255 5840510 518861923 1037723846 2594309615 5188619230 6745204999 13490409998 33726024995 67452049990