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1029668514 = 23728578581
BaseRepresentation
bin111101010111110…
…111111010100010
32122202111120122220
4331113313322202
54102043343024
6250101211510
734342016010
oct7527677242
92582446586
101029668514
11489248216
12248a00b96
13135427314
149aa718b0
15605e1e79
hex3d5f7ea2

1029668514 has 32 divisors (see below), whose sum is σ = 2354626176. Its totient is φ = 294053760.

The previous prime is 1029668513. The next prime is 1029668537. The reversal of 1029668514 is 4158669201.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1029668513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115704 + ... + 124284.

It is an arithmetic number, because the mean of its divisors is an integer number (73582068).

Almost surely, 21029668514 is an apocalyptic number.

1029668514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1029668514 is an abundant number, since it is smaller than the sum of its proper divisors (1324957662).

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

1029668514 is a wasteful number, since it uses less digits than its factorization.

1029668514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11450.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 1029668514 is about 32088.4482952978. The cubic root of 1029668514 is about 1009.7932831851.

The spelling of 1029668514 in words is "one billion, twenty-nine million, six hundred sixty-eight thousand, five hundred fourteen".

Divisors: 1 2 3 6 7 14 21 42 2857 5714 8571 8581 17142 17162 19999 25743 39998 51486 59997 60067 119994 120134 180201 360402 24515917 49031834 73547751 147095502 171611419 343222838 514834257 1029668514