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1913448950 = 25275466997
BaseRepresentation
bin111001000001100…
…1110100111110110
311221100111021111122
41302003032213312
512404320331300
6513511503542
765263022240
oct16203164766
94840437448
101913448950
118a2101576
12454987bb2
1324656221a
141421a9090
15b2eb7c85
hex720ce9f6

1913448950 has 24 divisors (see below), whose sum is σ = 4067446512. Its totient is φ = 656039520.

The previous prime is 1913448949. The next prime is 1913448973. The reversal of 1913448950 is 598443191.

It is a super-2 number, since 2×19134489502 = 7322573768512205000, which contains 22 as substring.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2733149 + ... + 2733848.

It is an arithmetic number, because the mean of its divisors is an integer number (169476938).

Almost surely, 21913448950 is an apocalyptic number.

1913448950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1913448950 is an abundant number, since it is smaller than the sum of its proper divisors (2153997562).

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

1913448950 is a wasteful number, since it uses less digits than its factorization.

1913448950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5467016 (or 5467011 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1913448950 is about 43742.9874379883. The cubic root of 1913448950 is about 1241.4778058072.

The spelling of 1913448950 in words is "one billion, nine hundred thirteen million, four hundred forty-eight thousand, nine hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 5466997 10933994 27334985 38268979 54669970 76537958 136674925 191344895 273349850 382689790 956724475 1913448950