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1030646740 = 22551532337
BaseRepresentation
bin111101011011100…
…110101111010100
32122211100021112111
4331123212233110
54102321143430
6250134200404
734353231664
oct7533465724
92584307474
101030646740
11489856172
122491b3104
131356aa656
149ac481a4
1560736c2a
hex3d6e6bd4

1030646740 has 12 divisors (see below), whose sum is σ = 2164358196. Its totient is φ = 412258688.

The previous prime is 1030646731. The next prime is 1030646741. The reversal of 1030646740 is 476460301.

It can be written as a sum of positive squares in 2 ways, for example, as 411035076 + 619611664 = 20274^2 + 24892^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030646741) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25766149 + ... + 25766188.

It is an arithmetic number, because the mean of its divisors is an integer number (180363183).

Almost surely, 21030646740 is an apocalyptic number.

1030646740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030646740 is an abundant number, since it is smaller than the sum of its proper divisors (1133711456).

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

1030646740 is a wasteful number, since it uses less digits than its factorization.

1030646740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51532346 (or 51532344 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 1030646740 is about 32103.6873271592. The cubic root of 1030646740 is about 1010.1129632172.

The spelling of 1030646740 in words is "one billion, thirty million, six hundred forty-six thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 51532337 103064674 206129348 257661685 515323370 1030646740