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1081668270 = 23564156249
BaseRepresentation
bin100000001111000…
…1111001010101110
32210101100102220210
41000132033022232
54203401341040
6255155523250
735543012544
oct10036171256
92711312823
101081668270
11505634421
122622b9526
131431329c7
14a3929d94
1564e64480
hex4078f2ae

1081668270 has 32 divisors (see below), whose sum is σ = 2600100000. Its totient is φ = 287989760.

The previous prime is 1081668257. The next prime is 1081668319. The reversal of 1081668270 is 728661801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8895 + ... + 47354.

It is an arithmetic number, because the mean of its divisors is an integer number (81253125).

Almost surely, 21081668270 is an apocalyptic number.

1081668270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1081668270 is an abundant number, since it is smaller than the sum of its proper divisors (1518431730).

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

1081668270 is a wasteful number, since it uses less digits than its factorization.

1081668270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56900.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 1081668270 is about 32888.7255757957. The cubic root of 1081668270 is about 1026.5135742988.

The spelling of 1081668270 in words is "one billion, eighty-one million, six hundred sixty-eight thousand, two hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 641 1282 1923 3205 3846 6410 9615 19230 56249 112498 168747 281245 337494 562490 843735 1687470 36055609 72111218 108166827 180278045 216333654 360556090 540834135 1081668270