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38551379212 = 2271421322433
BaseRepresentation
bin100011111001110101…
…110101110100001100
310200111201012222100201
4203321311311310030
51112423123113322
625413225503244
72533224213403
oct437165656414
9120451188321
1038551379212
1115393280885
12757a941b24
133834c0c3b8
141c1a04063a
15100973ad27
hex8f9d75d0c

38551379212 has 24 divisors (see below), whose sum is σ = 68577842592. Its totient is φ = 18959001600.

The previous prime is 38551379161. The next prime is 38551379219. The reversal of 38551379212 is 21297315583.

It is not an unprimeable number, because it can be changed into a prime (38551379219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41653 + ... + 280780.

It is an arithmetic number, because the mean of its divisors is an integer number (2857410108).

Almost surely, 238551379212 is an apocalyptic number.

It is an amenable number.

38551379212 is a deficient number, since it is larger than the sum of its proper divisors (30026463380).

38551379212 is a wasteful number, since it uses less digits than its factorization.

38551379212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322929 (or 322927 counting only the distinct ones).

The product of its digits is 453600, while the sum is 46.

The spelling of 38551379212 in words is "thirty-eight billion, five hundred fifty-one million, three hundred seventy-nine thousand, two hundred twelve".

Divisors: 1 2 4 71 142 284 421 842 1684 29891 59782 119564 322433 644866 1289732 22892743 45785486 91570972 135744293 271488586 542977172 9637844803 19275689606 38551379212