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1029478074 = 23617278087
BaseRepresentation
bin111101010111001…
…001011010111010
32122202010220102120
4331113021122322
54102021244244
6250053142110
734340263542
oct7527113272
92582126376
101029478074
11489128129
1224892a936
1313538b731
149aa22322
15605a5819
hex3d5c96ba

1029478074 has 16 divisors (see below), whose sum is σ = 2062300608. Its totient is φ = 342601952.

The previous prime is 1029478067. The next prime is 1029478111. The reversal of 1029478074 is 4708749201.

It is a happy number.

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, 135342 + ... + 142745.

It is an arithmetic number, because the mean of its divisors is an integer number (128893788).

Almost surely, 21029478074 is an apocalyptic number.

1029478074 is an abundant number, since it is smaller than the sum of its proper divisors (1032822534).

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

1029478074 is a wasteful number, since it uses less digits than its factorization.

1029478074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278709.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 1029478074 is about 32085.4807350615. The cubic root of 1029478074 is about 1009.7310246727.

The spelling of 1029478074 in words is "one billion, twenty-nine million, four hundred seventy-eight thousand, seventy-four".

Divisors: 1 2 3 6 617 1234 1851 3702 278087 556174 834261 1668522 171579679 343159358 514739037 1029478074