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139369338 = 23227128571
BaseRepresentation
bin10000100111010…
…01101101111010
3100201020200210100
420103221231322
5241134304323
621455100230
73311422413
oct1023515572
9321220710
10139369338
1171741279
123a811676
1322b49284
141471c80a
15c37e943
hex84e9b7a

139369338 has 24 divisors (see below), whose sum is σ = 303091776. Its totient is φ = 46283400.

The previous prime is 139369333. The next prime is 139369381. The reversal of 139369338 is 833963931.

It is a junction number, because it is equal to n+sod(n) for n = 139369293 and 139369302.

It is not an unprimeable number, because it can be changed into a prime (139369333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9408 + ... + 19163.

It is an arithmetic number, because the mean of its divisors is an integer number (12628824).

Almost surely, 2139369338 is an apocalyptic number.

139369338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

139369338 is an abundant number, since it is smaller than the sum of its proper divisors (163722438).

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

139369338 is a wasteful number, since it uses less digits than its factorization.

139369338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28850 (or 28847 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The square root of 139369338 is about 11805.4791516482. The cubic root of 139369338 is about 518.4685439273.

The spelling of 139369338 in words is "one hundred thirty-nine million, three hundred sixty-nine thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 9 18 271 542 813 1626 2439 4878 28571 57142 85713 171426 257139 514278 7742741 15485482 23228223 46456446 69684669 139369338