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1031149768 = 231153221087
BaseRepresentation
bin111101011101100…
…001100011001000
32122212021211120011
4331131201203020
54102433243033
6250153041304
734360425355
oct7535414310
92585254504
101031149768
1148a06a0a0
122493b6234
131358255bc
149ad3962c
15607d5ccd
hex3d7618c8

1031149768 has 32 divisors (see below), whose sum is σ = 2148975360. Its totient is φ = 459858880.

The previous prime is 1031149759. The next prime is 1031149771. The reversal of 1031149768 is 8679411301.

1031149768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1031149768.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105880 + ... + 115207.

It is an arithmetic number, because the mean of its divisors is an integer number (67155480).

Almost surely, 21031149768 is an apocalyptic number.

It is an amenable number.

1031149768 is an abundant number, since it is smaller than the sum of its proper divisors (1117825592).

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

1031149768 is a wasteful number, since it uses less digits than its factorization.

1031149768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221157 (or 221153 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 1031149768 is about 32111.5207986168. The cubic root of 1031149768 is about 1010.2772718470.

The spelling of 1031149768 in words is "one billion, thirty-one million, one hundred forty-nine thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 11 22 44 53 88 106 212 424 583 1166 2332 4664 221087 442174 884348 1768696 2431957 4863914 9727828 11717611 19455656 23435222 46870444 93740888 128893721 257787442 515574884 1031149768