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1970000238 = 231249262877
BaseRepresentation
bin111010101101011…
…1101000101101110
312002021220101021210
41311122331011232
513013310001423
6523251535250
766550503633
oct16532750556
95067811253
101970000238
11921017378
1246b8ba526
132551a251b
141498ca18a
15b7e38b93
hex756bd16e

1970000238 has 16 divisors (see below), whose sum is σ = 3943170000. Its totient is φ = 656138496.

The previous prime is 1970000191. The next prime is 1970000297. The reversal of 1970000238 is 8320000791.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123945 + ... + 138932.

It is an arithmetic number, because the mean of its divisors is an integer number (246448125).

Almost surely, 21970000238 is an apocalyptic number.

1970000238 is an abundant number, since it is smaller than the sum of its proper divisors (1973169762).

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

1970000238 is a wasteful number, since it uses less digits than its factorization.

1970000238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264131.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1970000238 is about 44384.6847234494. The cubic root of 1970000238 is about 1253.5897319645.

The spelling of 1970000238 in words is "one billion, nine hundred seventy million, two hundred thirty-eight", and thus it is an aban number.

Divisors: 1 2 3 6 1249 2498 3747 7494 262877 525754 788631 1577262 328333373 656666746 985000119 1970000238