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13888250139 = 331149336023
BaseRepresentation
bin11001110111100110…
…11110000100011011
31022211220012012120210
430323303132010123
5211420343001024
610214041222203
71001110115121
oct147363360433
938756165523
1013888250139
115987611985
122837191963
1314044131ba
1495a707911
1556440c129
hex33bcde11b

13888250139 has 8 divisors (see below), whose sum is σ = 19115011072. Its totient is φ = 8960161320.

The previous prime is 13888250119. The next prime is 13888250153. The reversal of 13888250139 is 93105288831.

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

It is not a de Polignac number, because 13888250139 - 28 = 13888249883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13888250119) 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, 74667919 + ... + 74668104.

It is an arithmetic number, because the mean of its divisors is an integer number (2389376384).

Almost surely, 213888250139 is an apocalyptic number.

13888250139 is a deficient number, since it is larger than the sum of its proper divisors (5226760933).

13888250139 is a wasteful number, since it uses less digits than its factorization.

13888250139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149336057.

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 13888250139 in words is "thirteen billion, eight hundred eighty-eight million, two hundred fifty thousand, one hundred thirty-nine".

Divisors: 1 3 31 93 149336023 448008069 4629416713 13888250139