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11898147830 = 251189814783
BaseRepresentation
bin10110001010010111…
…10101001111110110
31010201012110112102212
423011023311033312
5143331411212310
65244350333422
7600563405432
oct130513651766
933635415385
1011898147830
115056215628
1223807ba272
131178022c7a
1480c2a79c2
15499852205
hex2c52f53f6

11898147830 has 8 divisors (see below), whose sum is σ = 21416666112. Its totient is φ = 4759259128.

The previous prime is 11898147827. The next prime is 11898147839. The reversal of 11898147830 is 3874189811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11898147839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594907382 + ... + 594907401.

It is an arithmetic number, because the mean of its divisors is an integer number (2677083264).

Almost surely, 211898147830 is an apocalyptic number.

11898147830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11898147830 is a deficient number, since it is larger than the sum of its proper divisors (9518518282).

11898147830 is a wasteful number, since it uses less digits than its factorization.

11898147830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189814790.

The product of its (nonzero) digits is 387072, while the sum is 50.

The spelling of 11898147830 in words is "eleven billion, eight hundred ninety-eight million, one hundred forty-seven thousand, eight hundred thirty".

Divisors: 1 2 5 10 1189814783 2379629566 5949073915 11898147830