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1049020680 = 23358741839
BaseRepresentation
bin111110100001101…
…100100100001000
32201002220202211210
4332201230210020
54122022130210
6252032053120
734665346221
oct7641544410
92632822753
101049020680
11499165844
122533941a0
131394418c6
149d46c248
1562165e20
hex3e86c908

1049020680 has 32 divisors (see below), whose sum is σ = 3147062400. Its totient is φ = 279738816.

The previous prime is 1049020667. The next prime is 1049020681. The reversal of 1049020680 is 860209401.

It is a super-2 number, since 2×10490206802 = 2200888774135324800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1049020681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4370800 + ... + 4371039.

It is an arithmetic number, because the mean of its divisors is an integer number (98345700).

Almost surely, 21049020680 is an apocalyptic number.

1049020680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1049020680 is an abundant number, since it is smaller than the sum of its proper divisors (2098041720).

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

1049020680 is a wasteful number, since it uses less digits than its factorization.

1049020680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8741853 (or 8741849 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1049020680 is about 32388.5887312183. The cubic root of 1049020680 is about 1016.0802657359.

The spelling of 1049020680 in words is "one billion, forty-nine million, twenty thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 8741839 17483678 26225517 34967356 43709195 52451034 69934712 87418390 104902068 131127585 174836780 209804136 262255170 349673560 524510340 1049020680