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38189707930 = 2511347179163
BaseRepresentation
bin100011100100010010…
…001011001010011010
310122120111200011122001
4203210102023022122
51111203031123210
625313305551214
72521243106233
oct434422131232
9118514604561
1038189707930
11152181048a0
1274997a550a
1337a7ccaa1a
141bc3db608a
15ed7ae903a
hex8e448b29a

38189707930 has 16 divisors (see below), whose sum is σ = 74990699424. Its totient is φ = 13887166480.

The previous prime is 38189707903. The next prime is 38189707967. The reversal of 38189707930 is 3970798183.

It is a Harshad number since it is a multiple of its sum of digits (55).

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, 173589472 + ... + 173589691.

It is an arithmetic number, because the mean of its divisors is an integer number (4686918714).

Almost surely, 238189707930 is an apocalyptic number.

38189707930 is a deficient number, since it is larger than the sum of its proper divisors (36800991494).

38189707930 is a wasteful number, since it uses less digits than its factorization.

38189707930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347179181.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 38189707930 in words is "thirty-eight billion, one hundred eighty-nine million, seven hundred seven thousand, nine hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 347179163 694358326 1735895815 3471791630 3818970793 7637941586 19094853965 38189707930