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38283191212 = 2273144105059
BaseRepresentation
bin100011101001110110…
…110010001110101100
310122211000120121120211
4203221312302032230
51111400444104322
625330445352204
72523456520240
oct435166621654
9118730517524
1038283191212
1115265955202
127504b68664
1337c149c286
141bd258c420
15ee0e12b77
hex8e9db23ac

38283191212 has 24 divisors (see below), whose sum is σ = 79036267520. Its totient is φ = 15877820880.

The previous prime is 38283191147. The next prime is 38283191269. The reversal of 38283191212 is 21219138283.

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, 22051662 + ... + 22053397.

Almost surely, 238283191212 is an apocalyptic number.

It is an amenable number.

38283191212 is an abundant number, since it is smaller than the sum of its proper divisors (40753076308).

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

38283191212 is a wasteful number, since it uses less digits than its factorization.

38283191212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44105101 (or 44105099 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The spelling of 38283191212 in words is "thirty-eight billion, two hundred eighty-three million, one hundred ninety-one thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 44105059 88210118 176420236 308735413 617470826 1234941652 1367256829 2734513658 5469027316 9570797803 19141595606 38283191212