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6770420154 = 23441792717
BaseRepresentation
bin1100100111000110…
…00110100110111010
3122110211201222110000
412103203012212322
5102331211421104
63035453333430
7326530423161
oct62343064672
918424658400
106770420154
1129647a8963
12138b497276
1383b892c94
144832783d8
152995ba639
hex1938c69ba

6770420154 has 20 divisors (see below), whose sum is σ = 15170756634. Its totient is φ = 2256806664.

The previous prime is 6770420123. The next prime is 6770420177. The reversal of 6770420154 is 4510240776.

It can be written as a sum of positive squares in only one way, i.e., 5886725625 + 883694529 = 76725^2 + 29727^2 .

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 20896197 + ... + 20896520.

Almost surely, 26770420154 is an apocalyptic number.

6770420154 is an abundant number, since it is smaller than the sum of its proper divisors (8400336480).

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

6770420154 is a wasteful number, since it uses less digits than its factorization.

6770420154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41792731 (or 41792722 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 6770420154 is about 82282.5628793853. The cubic root of 6770420154 is about 1891.7854179103.

The spelling of 6770420154 in words is "six billion, seven hundred seventy million, four hundred twenty thousand, one hundred fifty-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 41792717 83585434 125378151 250756302 376134453 752268906 1128403359 2256806718 3385210077 6770420154