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1040745168 = 243217439887
BaseRepresentation
bin111110000010001…
…000001011010000
32200112100022222100
4332002020023100
54112412321133
6251134440400
734535121321
oct7602101320
92615308870
101040745168
11494523281
12250663100
13137804c58
149c316448
156157de13
hex3e0882d0

1040745168 has 120 divisors (see below), whose sum is σ = 3156012288. Its totient is φ = 318882816.

The previous prime is 1040745163. The next prime is 1040745221. The reversal of 1040745168 is 8615470401.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040745163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100321 + ... + 110207.

Almost surely, 21040745168 is an apocalyptic number.

1040745168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1040745168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1578006144).

1040745168 is an abundant number, since it is smaller than the sum of its proper divisors (2115267120).

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

1040745168 is a wasteful number, since it uses less digits than its factorization.

1040745168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9961 (or 9952 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 1040745168 is about 32260.5822638092. The cubic root of 1040745168 is about 1013.4013248854.

The spelling of 1040745168 in words is "one billion, forty million, seven hundred forty-five thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 34 36 43 48 51 68 72 86 102 129 136 144 153 172 204 258 272 306 344 387 408 516 612 688 731 774 816 1032 1224 1462 1548 2064 2193 2448 2924 3096 4386 5848 6192 6579 8772 9887 11696 13158 17544 19774 26316 29661 35088 39548 52632 59322 79096 88983 105264 118644 158192 168079 177966 237288 336158 355932 425141 474576 504237 672316 711864 850282 1008474 1275423 1344632 1423728 1512711 1700564 2016948 2550846 2689264 3025422 3401128 3826269 4033896 5101692 6050844 6802256 7227397 7652538 8067792 10203384 12101688 14454794 15305076 20406768 21682191 24203376 28909588 30610152 43364382 57819176 61220304 65046573 86728764 115638352 130093146 173457528 260186292 346915056 520372584 1040745168